Veteran billionaire investor Radhakishan Shivkishan Damani could see the value of his National Stock Exchange (NSE) holding swing by nearly Rs 40 crore for every Rs 10 move in the exchange’s share price after listing.Damani holds 3.91 crore NSE shares, representing a 1.58% stake in the exchange, according to its Red Herring Prospectus (RHP). At the upper end of the IPO price band of Rs 1,785, his holding is valued at around Rs 6,980 crore.This means every Rs 10 rise in NSE shares would add roughly Rs 39.1 crore to the value of Damani’s stake, while a similar decline would…