"I heard that the price per sq. ft. was at Rs 4657 in Oct- Dec 2012 quarter and then
price depreciated to Rs 4610 in the next quarter of Jan-Mar 2013."
Whitefield is one the prominent localities in Bangalore. The area lies in the vicinity of many educational institutions, banks, premier hotels, malls & supermarkets, hospitals and so on. So appreciation is expected.
Water is a big issue in Bangalore. The whole city is going to face water crisis after few months. You can looking for areas like Indiranagar, Kasturi Nagar, HSR Layout and Whitefield.