How is ESOP surrender (Private company, registered in US) taxed in the hand of ex-employee?

Income Tax Income from Capital Gains
1

I’m an ex-employee of a startup who offered esop liquidation, signed esop cancellation agreement and received the money after deducting TDS.

While filing ITR, can I mention this a perquisite tax + capital gain?

2

can anyone please answer this?
@taxquestion