nifty call option

yesterday i had purchased one lot of nifty call option of 5100 strike price at the premium of 56rs , today the market is good the nifty almost touched 5100 level and slipped a little , as of now the premium of 5100 call option has touched 90rs ,i made an early exit at 85rs , a profit of nearly 27rs net , almost 50 % profit of the investment.i feel the market will cross 5100 mark today.i dont hold my options for long either ways. i exit fast let it be a loss or profit.