Dear Dr Saraf
One data set that is very cheap but may not be high enough resolution for
you is the GTOPO30 dem data (1KM) resolution. I think for India you would
be looking at one CD and I think that would cost you about $10 US. It is
available from the USGS EROS DATA CENTER, SIOUX FALLS. Also have you had a look
at this:
CATALOGUE OF DIGITAL ELEVATION DATA LAST UPDATED: 23-JAN-1997
=================================== (c) Bruce M. Gittings, 1996. This catalogue
is available from the following sources: - Posting on GIS-L /
comp.infosystems.gis at the start of each month - Through the World-Wide Web at
URL http://www.geo.ed.ac.uk/home/ded.html
- By sending email to [EMAIL PROTECTED] containing the
command "SEND DEM" This catalogue was compiled using my own
information and the contributions of a large number of helpful readers of GIS-L.
It includes details of elevation and bathymetric data, together with a section
on available software for the display and manipulation of these data. I would be
very grateful for any corrections or additions, which you can be assured will be
of benefit to the whole community. I am most grateful to the many individuals
who have contributed. I have not acknowledged individual names because some have
specifically wished to maintain their anonimity. If you supply me with material
which, for one reason or another, should have a name attached I am happy to do
this. I must, however, acknowledge the enormous help of Ernie Beale ([EMAIL PROTECTED]) who has put a lot of work
into extending the catalogue, while undertaking the Master's programme in GIS at
the University of Edinburgh. Some additional information (e.g. electronic
documents which were the source of some of the information included here) are
available by e-mailing our automatic information server ([EMAIL PROTECTED]).
Regards
Tom Orr
