My guess would be that Mumbai gets pulled. The loads would appear to be low and it appears bmi cancel this route quite regularly.
My LAS experience has been that there is sunsatntial demand for this route in Y and Y+ with J not doing too bad the few times I have flown the route.
I don't do BOM but my colleagues who have have found Y half full and Y+ and J empty.
Thats my two penneth on the matter or IMHO etc etc.