This is an amendment to the original share and warrant purchase agreement, which saw Jhunjhunwala and 12 other entities pick up stake in MCX-SX in a deal worth Rs 88 crore.
The modification to the original agreement comes after clarification sought by BSE last week on sale of FTIL's stake in MCX-SX in November.
The exchange had questioned the sale of warrants to the investors after the warrants had been extinguished as per an earlier circular from FTIL.
FTIL shares were up 1.5% at Rs 225.35 per share on the BSE.