So, finally comapny understood mindset and problem of common man of not want to spend such a big amount of Rs. 31000/36000 to buy an iphone and made it available through EMI with tying up with few banks. I saw this info on iphone section of airtel site (http://www.airtel.in/iphone3g) Rajesh

This phone can only be used with an Airtel connection. Customers can enjoy free 500 MB of data download / month for 12 months. The charges beyond this usage will be Re 0.30/50 Kb. After the expiry of 12 months, customer can opt for a plan of his choice from the different plans available on offer. This offer is not valid if used on any other phone. To activate this GPRS offer, please request the Helpdesk at any Airtel outlet. Upon activation of this offer, customer will give up the tariffs and benefits available on the existing plan. After the expiry of the offer period of 12 months, customer may get this phone unlocked free of cost which will allow use of SIM from any other service provider. In case customer unlocks the phone before the expiry of 12 months, all warranties / benefits are null and void. For more details, call 121 from your mobile or log in to http://www.airtel.in.