Nifty index will be raising but the call opemium values will go up. Why this will happen?

why many times nifty will move even 100 points upside but call option price will not go up ?

The premium is a function of the price, hence this happens.

Maybe this article will help you find some answers…

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It is directly proportional to spot price of nifty in call option and inversely in put option.

You should give specific instances or values to discuss.
Usually when nifty moves up its call option value also goes up.
But to what extent, is determined by whether it is OTM, ITM o ATM option.

my question is … why many times nifty will move even 100 points upside but call option price will not go up ? can you plz explain