As per my calculation the MAX Pain for TEHM for Jul-13 expiry is at 1120. So I am not sure how you are calculating the MAX Pain.
The MAX OI is also at 1000-1140, which is in line with 1120. May be today there was a breakout because TECHM now trading around 1180.
MAX CHG in OI @ 1140-1180.
So we have to see tomorrow what happens.
I may be wrong on MAX Pain calculation
Just to cross check, What are you getting for NIFTY as MAX Pain? As per my calculation it is at 6000.