Some choice quotes:
A simple test: buy/borrow a phone used by your target audience. Point its browser at your site and try to use it. If you can't, weep.My take home lesson: if India is to be a strategic market, support for mobile telephones must be equally strategic.
If you are getting a website developed, ask the developers about mobile support at launch time. If they say "later", fire them instantly.
Almost ALL new Internet users in India will come online with mobile devices in 2011. If they can't read/use your site, shut shop and go home
PC penetration in India sucks ostrich eggs, but mobile device penetration is a different ball game - India leads the world there.
I can guarantee loss of visitors and business (and valuation) for any website in 2011 that is unusable in a mobile browser.
Saying "all mobile browsers show my site correctly" is a clear sign that you don't understand the issues