How to Sell Lowest Value Strike

Please help me with the below issue.

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i want to sell lowest value strike in ATM i.e., 21250 CE

Please tell me how to do that?

@JG_1 can you elaborate your question ? What is lowest value strike ?

In the above 21250 strike, call is trading at 109.8 and put is trading at 124.75. how to select 109.8 to be shorted?

may be create two set, one will check if ce> pe and then sell ce and set2 will check pe > ce , then cell pe. if you dont want execute set2 once set1 is executed, check if anything exist to check this condition.