Hi Chetana,<br><br>You can contact OSGEO-India regarding PostGIS. They have nice tutorial along with data which covers most of the topic in PostGIS. Write email to Dr Rajan at <a href="mailto:rajan@iiit.ac.in">rajan@iiit.ac.in</a>. Even OSGEO India will be starting course Open Source GIS software soon. <br>
<br>Regards,<br><br>Santosh Gaikwad,<br><br>Information Officer,<br>Salim Ali Centre For Ornithology and Natural History,<br>SACON,<br>Hyderabad, India<br><br>