Had the same problem -- was flying EWR-BRU-MAA-BOM-MAA-BRU-EWR in J
the MAA-BOM-MAA was booked in Y although the entire ticket was ~8K -- I hadn't realized until I left hotel in MAA to head to the airport. I also had more luggage than Y would permit -- I went to the 9W counter in MAA asked how much an upgrade would cost -- they said $90 -- the extra baggage allowance was $50 so I decided to take the $90 offer
Later I found out that the original flight that I was booked on b/w MAA-BOM-MAA had no J seats -- this itinerary was subsequently changed by my TA but somehow the Y didn't change. I am assuming the TA messed up but 9W staff was totally useless -- asked me to call my TA (in US) from India
Also service on 9W is getting poorer