Yes it is true that the expected price of the all new iPhone 5 in India will be around Rs. 50,000. I am claiming this because the price of the SIM free version of the same phone in Europe is 660 euro which converts to around Rs. 47,000 in India. Add Rs. 3,000 to it so that they can call it a premium phone.
But the main question is that is it worth that price tag?
One can read about the specs on the following post
http://ub7.net/forums/topic/apple-reveals-awaited-iphone-5/