Query on margin requirements

Suppose if today I bought 3200 qty ITC shares @ 193 Rs. in CNC and sold 195 strike DEC CE option 1 lot which is same as 3200 qty.

Now do I have to bring in margin money incase option rises by 1 rs and stock also rises by 1rs? Because the notional gain/loss would be zero.

If your Short Option position is in losses, this will increase your margin requirement. Gains in underlying price will not offset losses in Short Option position.