HDFC about 40%-50% over a period of next one year.The largest merger agreement in India to date, between HDFC and HDFC bank, has piqued the interest of Indian investors. Whenever there is news about a merger, prices peak in the near term and then recover. So, for the time being, it is extremely possible to halt current progress and retrace to 1600 before rising to 2600-2800 during the next year.