how should i go about this problem

1. Ask both of them to file for MCD in India as per jurisdiction with POA.
2. They need to also pray for overseas Video Conferencing with respective witness vouching them respectively here in India.
3. With 6 months cooling period wait both of them will get MCD Decree and certified copy of the same could be annexed backhome for maiden name change.
Rgds.

if it is not expartee decree, I think the passport office [Indian consulate] can accept...you can consult some attorney in USA, who can challenge the passport office's decision.