Option margin clarification

Trade 1 : Shorted a nifty CE on expiry day MIS

Will i require additional margin to open another position of trade 2.

Trade 2 : Short nifty pe while trade 1 is open on the same expiry day

Suppose if it requires to have 1 lakh margin to short nifty CE on expiry day should i maintain another 1 lakh margin to short nifty PE on expiry day? OR will i get margin benefit since CE short position is already open