Calculation for Hedging Portfolio

Is there any calculation to hedge portfolio by selling Nifty call?
I have 30 Nifty shares having worth around 18 Lac in my portfolio and want to hedge it. So is there any calculation to calculate on the basis of stock’s weightage in Nifty and quantity I have in my portfolio? ie how many lots of Nifty (Next Strike Call option ) should I sell to hedge my portfolio and to get some return weekly on my investment as well.
Any help would be appreciated @siva @nithin