Hi, I am in a similar situation as your wife. My wife, who is a naturalized US former Indian citizen, applied last year and got an OCI card within 6 weeks. I then applied in February as her spouse. The application was processed in NY and sent to Delhi in early March and has been "under-process" since then. After sending many emails and phoning the NY consulate, I was finally told that the application is awaiting approval from the Ministry of Home Affairs and that there is no timeline for how long that will take.
Did your wife eventually get her OCI card? If so, how long did that take and did you do anything to expedite the process?
Thanks for any information,
Zig Fiedorowicz