We are in the same boat for Mumbai consulate. NOA2 Feb 27th. NVC received on Mar 21st. Still in NVC. We have a case number and the status is "At NVC." We received the generic email yesterday. It states...
"This notice is to inform you that NVC is currently holding your approved From I-129F and it has been at least 60 days since we received it from USCIS..."
Kind of worried and frustrated that it is taking so long.