Bug#1055567: Error: gscan2pdf fails to compile

2023-11-21 Thread Soumyanath Chatterjee
Thank you Jeff for your persistent effort in tracking down the bug. It 
has given me a workaround to run gscan2pdf.


As advised, I will raise a separate request for libsane.




On 21/11/23 02:47, Jeff wrote:

On 20/11/2023 17:51, Soumyanath Chatterjee wrote:
soumyanath@ganak-desktop:~$ LD_LIBRARY_PATH=/lib/x86_64-linux-gnu/ 
gscan2pdf


This one works.

Please suggest what changes I need to make to run it normally


For me, this isn't a problem with gscan2pdf, but with the way that 
libsane was compiled (or better, linked) against libusb.


i.e. the problem can only be fixed by a new version of libsane.

As you are using Ubuntu, I suggest you raise a bug against the libsane 
package:


https://packages.ubuntu.com/search?keywords=libsane

Bug#1055567: Error: gscan2pdf fails to compile

2023-11-20 Thread Soumyanath Chatterjee

On 20/11/23 17:03, Jeff wrote:

What about:

sudo ldconfig

cat /etc/ld.so.conf.d/x86_64-linux-gnu.conf

If you start gscan2pdf as follows:

LD_LIBRARY_PATH=/lib/x86_64-linux-gnu/ gscan2pdf

?

Can you start xsane, simple-scan or scanimage ?



soumyanath@ganak-desktop:~$ sudo ldconfig
[sudo] password for soumyanath:
soumyanath@ganak-desktop:~$ cat /etc/ld.so.conf.d/x86_64-linux-gnu.conf
# Multiarch support
/usr/local/lib/x86_64-linux-gnu
/lib/x86_64-linux-gnu
/usr/lib/x86_64-linux-gnu
soumyanath@ganak-desktop:~$ LD_LIBRARY_PATH=/lib/x86_64-linux-gnu/ 
gscan2pdf


This one works.

Please suggest what changes I need to make to run it normally



Bug#1055567: Error: gscan2pdf fails to compile

2023-11-19 Thread Soumyanath Chatterjee

On 19/11/23 21:35, Jeff wrote:
It looks like the version of libusb libsane was built against is not 
the same as the one you are running with.


There are some similarities here: 
https://askubuntu.com/questions/1264001/error-installing-xsane-sane-hplip-etc-with-undefined-symbol-libusb-set-optio


What does the following return?

apt-cache policy libsane1 libsane-common libimage-sane-perl libusb-1.0



soumyanath@ganak-desktop:~$ apt-cache policy libsane1 libsane-common 
libimage-sane-perl libusb-1.0

libsane1:
 Installed: 1.0.29-0ubuntu5.2
 Candidate: 1.0.29-0ubuntu5.2
 Version table:
*** 1.0.29-0ubuntu5.2 500
   500 http://in.archive.ubuntu.com/ubuntu focal-updates/universe 
amd64 Packages

   100 /var/lib/dpkg/status
1.0.29-0ubuntu5.1 500
   500 http://security.ubuntu.com/ubuntu focal-security/universe 
amd64 Packages

1.0.29-0ubuntu5 500
   500 http://in.archive.ubuntu.com/ubuntu focal/universe amd64 
Packages

libsane-common:
 Installed: 1.0.29-0ubuntu5.2
 Candidate: 1.0.29-0ubuntu5.2
 Version table:
*** 1.0.29-0ubuntu5.2 500
   500 http://in.archive.ubuntu.com/ubuntu focal-updates/main amd64 
Packages
   500 http://in.archive.ubuntu.com/ubuntu focal-updates/main i386 
Packages

   100 /var/lib/dpkg/status
1.0.29-0ubuntu5.1 500
   500 http://security.ubuntu.com/ubuntu focal-security/main amd64 
Packages
   500 http://security.ubuntu.com/ubuntu focal-security/main i386 
Packages

1.0.29-0ubuntu5 500
   500 http://in.archive.ubuntu.com/ubuntu focal/main amd64 Packages
   500 http://in.archive.ubuntu.com/ubuntu focal/main i386 Packages
libimage-sane-perl:
 Installed: 5-1
 Candidate: 5-1
 Version table:
*** 5-1 500
   500 http://in.archive.ubuntu.com/ubuntu focal/universe amd64 
Packages

   100 /var/lib/dpkg/status
libusb-1.0-0:
 Installed: 2:1.0.23-2build1
 Candidate: 2:1.0.23-2build1
 Version table:
*** 2:1.0.23-2build1 500
   500 http://in.archive.ubuntu.com/ubuntu focal/main amd64 Packages
   100 /var/lib/dpkg/status
libusb-1.0-0-dev:
 Installed: (none)
 Candidate: 2:1.0.23-2build1
 Version table:
2:1.0.23-2build1 500
   500 http://in.archive.ubuntu.com/ubuntu focal/main amd64 Packages
libusb-1.0-doc:
 Installed: (none)
 Candidate: 2:1.0.23-2build1
 Version table:
2:1.0.23-2build1 500
   500 http://in.archive.ubuntu.com/ubuntu focal/main amd64 Packages
   500 http://in.archive.ubuntu.com/ubuntu focal/main i386 Packages



Bug#1055567: Error: gscan2pdf fails to compile

2023-11-19 Thread Soumyanath Chatterjee


On 19/11/23 16:15, Jeff wrote:

Please reinstall the packages:

sudo apt reinstall libsane1 libimage-sane-perl

and try to start gscan2pdf again.



This is what I get

soumyanath@ganak-desktop:~$ gscan2pdf
Can't load 
'/usr/lib/x86_64-linux-gnu/perl5/5.30/auto/Image/Sane/Sane.so' for 
module Image::Sane: /usr/lib/x86_64-linux-gnu/libsane.so.1: undefined 
symbol: l

ibusb_set_option at /usr/share/perl/5.30/XSLoader.pm line 93.
at /usr/lib/x86_64-linux-gnu/perl5/5.30/Image/Sane.pm line 144.
Compilation failed in require at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 8.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 8.
Compilation failed in require at /usr/share/perl5/Gscan2pdf/Document.pm 
line 12.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Document.pm line 12.
Compilation failed in require at 
/usr/share/perl5/Gscan2pdf/Dialog/Renumber.pm line 7.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Dialog/Renumber.pm line 7.

Compilation failed in require at /usr/bin/gscan2pdf line 61.
BEGIN failed--compilation aborted at /usr/bin/gscan2pdf line 61.
Undefined subroutine ::Sane::_exit called at 
/usr/lib/x86_64-linux-gnu/perl5/5.30/Image/Sane.pm line 190.

END failed--call queue aborted at /usr/bin/gscan2pdf line 61.

---


Bug#1055567: Error: gscan2pdf fails to compile

2023-11-16 Thread Soumyanath Chatterjee

Please find the responses in red.


On 16/11/23 02:22, jeff wrote:

On 15/11/2023 12:19, Soumyanath Chatterjee wrote:

I find line 8 is commented out


I take it, therefore, that you didn't comment out the line yourself 
sometime in the past?


How did you install gscan2pdf?



I am not very sure. I think I installed it from ubuntu repository or 
might have taken it from sourceforge






ls -l /usr/lib/x86_64-linux-gnu/libsane.so.1
lrwxrwxrwx 1 root root 17 Sep 17  2020 
/usr/lib/x86_64-linux-gnu/libsane.so.1-> libsane.so.1.0.29


What about

ls -l /usr/lib/x86_64-linux-gnu/libsane.so.1.0.29 



-rw-r--r-- 1 root root 92232 Sep 17  2020 
/usr/lib/x86_64-linux-gnu/libsane.so.1.0.29




Bug#1055567: Error: gscan2pdf fails to compile

2023-11-15 Thread Soumyanath Chatterjee

Please find response to your questions below (in blue )



Regards

Soumyanath Chatterjee /  FIE, FIIE/

/
/


On 13/11/23 22:46, Jeff wrote:

On 13/11/2023 16:24, Soumyanath Chatterjee wrote:

  DB<1> use Image::Sane ':all';
Can't load 
'/usr/lib/x86_64-linux-gnu/perl5/5.30/auto/Image/Sane/Sane.so' for 
module Image::Sane: /usr/lib/x86_64-linux-gnu/libsane.so.1: undefined 
symbol: l

ibusb_set_option at /usr/share/perl/5.30/XSLoader.pm line 93.
at /usr/lib/x86_64-linux-gnu/perl5/5.30/Image/Sane.pm line 144.


If that failed, my first question is why you didn't see the same 
failure from the same line in 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm ? What do you see in 
line 8 of that file?


I find line 8 is commented out

package Gscan2pdf::Scanner::Options;

use strict;
use warnings;
no if $] >= 5.018, warnings => 'experimental::smartmatch';
use Carp;
use Glib qw(TRUE FALSE);    # To get TRUE and FALSE
# use Image::Sane ':all'; # For enums




What do you get from

ldd /usr/lib/x86_64-linux-gnu/perl5/5.30/auto/Image/Sane/Sane.so


linux-vdso.so.1 (0x7ffc2831c000)
   libsane.so.1 => /usr/lib/x86_64-linux-gnu/libsane.so.1 
(0x7f3ae5f7b000)

   libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x7f3ae5d89000)
   libusb-1.0.so.0 => /usr/local/lib/libusb-1.0.so.0 
(0x7f3ae5b7b000)

   libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x7f3ae5b75000)
   libxml2.so.2 => /usr/lib/x86_64-linux-gnu/libxml2.so.2 
(0x7f3ae59bb000)

   /lib64/ld-linux-x86-64.so.2 (0x7f3ae5fd4000)
   librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x7f3ae59b1000)
   libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 
(0x7f3ae598c000)
   libicuuc.so.66 => /usr/lib/x86_64-linux-gnu/libicuuc.so.66 
(0x7f3ae57a6000)

   libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x7f3ae578a000)
   liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 
(0x7f3ae5761000)

   libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x7f3ae5612000)
   libicudata.so.66 => /usr/lib/x86_64-linux-gnu/libicudata.so.66 
(0x7f3ae3b51000)
   libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 
(0x7f3ae396d000)
   libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 
(0x7f3ae3952000)






ls -l /usr/lib/x86_64-linux-gnu/perl5/5.30/auto/Image/Sane/Sane.so


-rw-r--r-- 1 root root 51192 Nov 24  2019 
/usr/lib/x86_64-linux-gnu/perl5/5.30/auto/Image/Sane/Sane.so





ls -l /usr/lib/x86_64-linux-gnu/libsane.so.1
lrwxrwxrwx 1 root root 17 Sep 17  2020 
/usr/lib/x86_64-linux-gnu/libsane.so.1-> libsane.so.1.0.29





?




I tried to remove the comment in line 8 of 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm and run gscan2pdf both as 
normal user and as su. Here is the output from that:



soumyanath@ganak-desktop:~$ gscan2pdf
Can't load 
'/usr/lib/x86_64-linux-gnu/perl5/5.30/auto/Image/Sane/Sane.so' for 
module Image::Sane: /usr/lib/x86_64-linux-gnu/libsane.so.1: undefined 
symbol: l

ibusb_set_option at /usr/share/perl/5.30/XSLoader.pm line 93.
at /usr/lib/x86_64-linux-gnu/perl5/5.30/Image/Sane.pm line 144.
Compilation failed in require at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 8.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 8.
Compilation failed in require at /usr/share/perl5/Gscan2pdf/Document.pm 
line 12.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Document.pm line 12.
Compilation failed in require at 
/usr/share/perl5/Gscan2pdf/Dialog/Renumber.pm line 7.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Dialog/Renumber.pm line 7.

Compilation failed in require at /usr/bin/gscan2pdf line 61.
BEGIN failed--compilation aborted at /usr/bin/gscan2pdf line 61.
Undefined subroutine ::Sane::_exit called at 
/usr/lib/x86_64-linux-gnu/perl5/5.30/Image/Sane.pm line 190.

END failed--call queue aborted at /usr/bin/gscan2pdf line 61.
soumyanath@ganak-desktop:~$ sudo gscan2pdf
Can't load 
'/usr/lib/x86_64-linux-gnu/perl5/5.30/auto/Image/Sane/Sane.so' for 
module Image::Sane: /usr/lib/x86_64-linux-gnu/libsane.so.1: undefined 
symbol: l

ibusb_set_option at /usr/share/perl/5.30/XSLoader.pm line 93.
at /usr/lib/x86_64-linux-gnu/perl5/5.30/Image/Sane.pm line 144.
Compilation failed in require at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 8.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 8.
Compilation failed in require at /usr/share/perl5/Gscan2pdf/Document.pm 
line 12.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Document.pm line 12.
Compilation failed in require at 
/usr/share/perl5/Gscan2pdf/Dialog/Renumber.pm line 7.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Dialog/Renumber.pm line 7.

Compilation failed in require at /usr/bin/gscan2pdf line 61.
BEGIN failed--compilation aborted at /usr/bin/gsc

Bug#1055567: Error: gscan2pdf fails to compile

2023-11-13 Thread Soumyanath Chatterjee

Please find the output:

Editor support available.

Enter h or 'h h' for help, or 'man perldebug' for more help.

main::(-e:1):   l
 DB<1> use Image::Sane ':all';
Can't load 
'/usr/lib/x86_64-linux-gnu/perl5/5.30/auto/Image/Sane/Sane.so' for 
module Image::Sane: /usr/lib/x86_64-linux-gnu/libsane.so.1: undefined 
symbol: l

ibusb_set_option at /usr/share/perl/5.30/XSLoader.pm line 93.
at /usr/lib/x86_64-linux-gnu/perl5/5.30/Image/Sane.pm line 144.
Compilation failed in require at (eval 
10)[/usr/share/perl/5.30/perl5db.pl:738] line 2.

at (eval 10)[/usr/share/perl/5.30/perl5db.pl:738] line 2.
   main::BEGIN() called at (eval 
10)[/usr/share/perl/5.30/perl5db.pl:738] line 2
   eval {...} called at (eval 
10)[/usr/share/perl/5.30/perl5db.pl:738] line 2
   eval 'no strict; ($@, $!, $^E, $,, $/, $\\, $^W) = 
@DB::saved;package main; $^D = $^D | $DB::db_stop;

use Image::Sane \':all\';;
' called at /usr/share/perl/5.30/perl5db.pl line 738
   DB::eval called at /usr/share/perl/5.30/perl5db.pl line 3138
   DB::DB called at -e line 1
BEGIN failed--compilation aborted at (eval 
10)[/usr/share/perl/5.30/perl5db.pl:738] line 2.

at (eval 10)[/usr/share/perl/5.30/perl5db.pl:738] line 2.
   eval 'no strict; ($@, $!, $^E, $,, $/, $\\, $^W) = 
@DB::saved;package main; $^D = $^D | $DB::db_stop;

use Image::Sane \':all\';;
' called at /usr/share/perl/5.30/perl5db.pl line 738
   DB::eval called at /usr/share/perl/5.30/perl5db.pl line 3138
   DB::DB called at -e line 1

 DB<2> print SANE_NAME_PAGE_HEIGHT, "\n";
No comma allowed after filehandle at (eval 
15)[/usr/share/perl/5.30/perl5db.pl:738] line 2.

at (eval 15)[/usr/share/perl/5.30/perl5db.pl:738] line 2.
   eval 'no strict; ($@, $!, $^E, $,, $/, $\\, $^W) = 
@DB::saved;package main; $^D = $^D | $DB::db_stop;

print SANE_NAME_PAGE_HEIGHT, "\\n";;
' called at /usr/share/perl/5.30/perl5db.pl line 738
   DB::eval called at /usr/share/perl/5.30/perl5db.pl line 3138
   DB::DB called at -e line 1

 DB<3>




On 12/11/23 22:52, Jeff wrote:

Please start an interactive Perl session with:

perl -d -e 1

Then execute the following:

use Image::Sane ':all';
print SANE_NAME_PAGE_HEIGHT, "\n";

and report the response.

Afterwards, you can quit with q


Bug#1055567: Error: gscan2pdf fails to compile

2023-11-12 Thread Soumyanath Chatterjee

Tried running it  but no log file is generated. Here is the console output:

soumyanath@ganak-desktop:~$ gscan2pdf --log=log
Bareword "SANE_NAME_SCAN_TL_X" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 128.
Bareword "SANE_NAME_SCAN_TL_Y" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 143.
Bareword "SANE_NAME_SCAN_TL_Y" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 145.
Bareword "SANE_NAME_SCAN_BR_Y" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 146.
Bareword "SANE_NAME_SCAN_BR_Y" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 149.
Bareword "SANE_NAME_SCAN_TL_X" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 130.
Bareword "SANE_NAME_SCAN_BR_X" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 131.
Bareword "SANE_NAME_SCAN_BR_X" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 134.
Bareword "SANE_NAME_PAGE_HEIGHT" not allowed while "strict subs" in use 
at /usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 116.
Bareword "SANE_NAME_PAGE_WIDTH" not allowed while "strict subs" in use 
at /usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 122.
Compilation failed in require at /usr/share/perl5/Gscan2pdf/Document.pm 
line 12.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Document.pm line 12.
Compilation failed in require at 
/usr/share/perl5/Gscan2pdf/Dialog/Renumber.pm line 7.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Dialog/Renumber.pm line 7.

Compilation failed in require at /usr/bin/gscan2pdf line 61.
BEGIN failed--compilation aborted at /usr/bin/gscan2pdf line 61.


Regards

Soumyanath Chatterjee /  FIE, FIIE/
Prod. Dev & SCM coach
Former TVS Motors Chair Professor, IIT Kharagpur, INDIA


*URL:* http://www.soumyanath.in *Ph:* +91 33 46004248(R)    +91 98318 
04223(M) *ORCiD:* -0003-4411-0669 
<https://orcid.org/-0003-4411-0669>





On 12/11/23 15:16, Jeff wrote:

gscan2pdf --log=log 

Bug#1055567: Error: gscan2pdf fails to compile

2023-11-10 Thread Soumyanath Chatterjee
Thank you for your prompt reply. I run gscan2pdf from command prompt to 
get the error list.


Here is the output you wanted:

$apt list libimage-sane-perl
Listing... Done
libimage-sane-perl/focal,now 5-1 amd64 [installed,automatic]

Please note: I do not have any scanner connected with my computer.


Regards

Soumyanath Chatterjee /  FIE, FIIE/
Prod. Dev & SCM coach
Former TVS Motors Chair Professor, IIT Kharagpur, INDIA


*URL:* http://www.soumyanath.in *Ph:* +91 33 46004248(R)    +91 98318 
04223(M) *ORCiD:* -0003-4411-0669 
<https://orcid.org/-0003-4411-0669>





On 08/11/23 23:38, Jeff wrote:

How are you starting gscan2pdf?

What does the following return?

apt list libimage-sane-perl

Regards

Jeff

Bug#1055567: Error: gscan2pdf fails to compile

2023-11-08 Thread Soumyanath Chatterjee

Package: gscan2pdf

Version: 2.13.2-0~ppa1focal

OS: Kubuntu 20.04

Other details: No scanner is attached with the computer. I use gscan2pdf 
for stitching images scanned by a handheld scanner. The program worked 
perfectly till last Aug'23.


Problem: gscan2pdf fails at command with the following error message. No 
logfile is generated.


Error Message:

Bareword "SANE_NAME_SCAN_TL_X" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 128.
Bareword "SANE_NAME_SCAN_TL_Y" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 143.
Bareword "SANE_NAME_SCAN_TL_Y" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 145.
Bareword "SANE_NAME_SCAN_BR_Y" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 146.
Bareword "SANE_NAME_SCAN_BR_Y" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 149.
Bareword "SANE_NAME_SCAN_TL_X" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 130.
Bareword "SANE_NAME_SCAN_BR_X" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 131.
Bareword "SANE_NAME_SCAN_BR_X" not allowed while "strict subs" in use at 
/usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 134.
Bareword "SANE_NAME_PAGE_HEIGHT" not allowed while "strict subs" in use 
at /usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 116.
Bareword "SANE_NAME_PAGE_WIDTH" not allowed while "strict subs" in use 
at /usr/share/perl5/Gscan2pdf/Scanner/Options.pm line 122.
Compilation failed in require at /usr/share/perl5/Gscan2pdf/Document.pm 
line 12.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Document.pm line 12.
Compilation failed in require at 
/usr/share/perl5/Gscan2pdf/Dialog/Renumber.pm line 7.
BEGIN failed--compilation aborted at 
/usr/share/perl5/Gscan2pdf/Dialog/Renumber.pm line 7.

Compilation failed in require at /usr/bin/gscan2pdf line 61.
BEGIN failed--compilation aborted at /usr/bin/gscan2pdf line 61.


Please help to resolve the problem.

--
Regards

Soumyanath Chatterjee /  FIE, FIIE/
Prod. Dev & SCM coach
Former TVS Motors Chair Professor, IIT Kharagpur, INDIA


*URL:* http://www.soumyanath.in *Ph:* +91 33 46004248(R)    +91 98318 
04223(M) *ORCiD:* -0003-4411-0669 
<https://orcid.org/-0003-4411-0669>