Clash between IIM mumbai and FMS interviews.

To my luck, the slot that i selected for pi at IIM MUMBAI (mba + mba oscm) collides with the FMS allocated interview date. I have requested a date change for FMS but haven’t received any response yet.

I am trying my best to convince one or the other for pi date shifts but am uncertain if any of them will comply.

In such scenario, what should be my poa? Given my fms composite, ill need a score of 17/30 in pi+extempore to get in by the margin based of previous year data.

Touchwood, In case it comes to it which interview should I prioritise?