Tech Mahindra was Oversubscribed 7 times for RI. It seems like more number of share you apply more the chances of getting greater shares. You can visit Geojit site for IPO allotments for recent IPO.
When the shares are going to be alotted ? In the present volatile market condition don't expect gain of more than 25 %, see the listing of first source & PFC---
The current market is bearish. Next bullish trend to start either immediately after the budger (if the budget is favourable to corporates) or after 6 to 8 week. This is the view of experts. Hence, in the bearish market we can expect a listing premium of 25 to 35% only. In the bullish market, of course, around 70%.