Here are few links where you can post your Camera WTS post:

http://www.flickr.com/groups/buynsell/

http://www.bangalorephotographyclub.com/forums/viewforum.php?f=11 (Need to register)

Other Hyderabad Forums:

http://www.flickr.com/groups/hyderabadweekendshoots/discuss/72157625140190165/?search=buy+sell

http://www.flickr.com/groups/hpc/discuss/72157625592483557/

for Used Cameras / Lens and Good Deals :)