ITR2 - Schedule FA - Initial value of investment

Hi,

I have a query regarding schedule FA in ITR2. In (A3), What does field 'initial value of investment' mean ? Is this amount invested or paid to obtain the equity shares ? OR is it the value of investment at the end of the day one of obtaining the assets (in other words value of shares at FMV)?

For example, in case of RSUs, should the initial value of investment be ZERO or the value of investment as per the closing share value at the end of the day of acquisition of shares?

Is the objective of field 'initial value of investment' meant to capture value at FMV so that capital gains in future can be calculated based on this field?

Thank you,

Sri