Are you asking me on basis of fundamental or technical? If you want to know the fundamental aspect and whether you should enter on the news of a demerger, I would recommend Ahmed's thread. Fundamental picks its called I guess.
Technically, if it breaks 152 on the bottom side, then I would expect it to slide upto 140-145. This is where you should enter with half of your expected buying. If the market slips further, then you should average it out @ 122-126 levels. The stop loss for all positions should be 115 with the target being 170.
On the other hand, if 167 is broken on the upper side without the stock breaking thru 152, then you should buy with a stop of 153 and target of 175/190. Above 195 we should see new heights, but that will depend on the price movement in the comming 2 weeks.
Jai Shewaramani