Comment on STT Trap - Options Expiry - NSE BSE MCX-SX

Sir,

I am new to option trading , and have basic doubt
I have bought Infy option call CE when share price was 950 of 500 units (1 lot)with preimum price as 11.5 , for target 960 (25-May) CE.
Now price after 1 day of stock is 945 but premium price is reduced to 8.5 Rs.
Now suppose
1) If I square off now whether I will loose all my money i.e 11.5* 500 which I initially paid , or I will loose only the difference between purchased price and last traded price * quantity .

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