Option greek calculator

Hello,

I am using options calculator in nest trader ,i have some doubts ,please clarify them ,and please do answer the following

  1. For Nifty options and Cds oprions should i select underlying or futures in options calculator

2.For nifty and currency options what should i enter in dividends and exdate

​3.Interest rate for nifty and currency options.

if so where can i find the above data.

Please help me

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