Note that I no longer use github.
MumbaiStock v 1.0 Gnucash Finance Module has been released. This is a totally new module to parse the page at the Bombay Stock Exchange web site to retrieve the bhav copy for the last trading day. This module will fetch the last traded price from the bhavcopy for use with GnuCash.
Download the MumbaiStock.pm module from https://github.com/geetuvaswani/MumbaiStock/blob/master/MumbaiStock.pm and follow the instructions listed at Use Gnucash to retrieve stock quotes from Bombay Stock Exchange India using MumbaiStock.pm to install and use it.