Are you sure? I'm sure I've seen reviews of it from users in Kolkata. Maybe not?
TBA.
Depending on the technology they use, it may be possible, but I doubt it.
I've heard some positive things from friends about this company, although I can't personally vouch for them:
Alliance Broadband service rates
Yes i think Reliance Wimax service is only avilable in Mumbai.
And reliance replied this on my query about their upload speed "kindly note that as per plan Zoom 2 you will be receiving the upload speed upto 250 kbps ".

Well, alliance is good but they are not available in my area, i better contact my cable operator and see what they are providing.
---------- Post added at 11:53 AM ---------- Previous post was at 11:51 AM ----------
Yes, Wimax is available in kolkata, check the website. Have read many post abt it from people in kolkata itself.
checked their website :
Reliance Wimax Broadband - Internet Services
read this at the bottom of the page "Service available only in Mumbai circle"
