TATA Power in Primary bull cycle & in mid of impulse wave-3 in weekly chart basis. This, Primary Impulse wave-3, should take the price to levels of 646 (1.618x) in next 8-10 month of time frame. While wave within the wave, on shorter time frame, on daily chart frame, its middle of intermediate corrective wave-4, which may retrace the price till 365 to 330 levels in coming 3-4 months.