Hello Mr. Krishnakant, I have actually managed to find a link though, I cannot guarantee the CD / DVD quality because I personally do not have any experience of purchasing it from this Vendor.
The Vendor is Kiraninfotech and they have their website where you can order Debain CDs.
http://www.kiraninfotech.com/store/
What actually brings me to this vendor is that he's listed on Knoppix's Website for purchasing Knoppix CD's from India. Forturnately, he's located in Mumbai.
http://www.knopper.net/knoppix-vendors/index-en.php
Hope this Helps.
Thirdly, the most underused resource of this mailing list is the wiki. You can access the following link and contact Mr. Mehul for debain CDs.
http://db.glug-bom.org/wiki/index.php/CDs_Available
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