Air Travel – About Flight Cancellation by Jet Airways

I book my flight from Delhi to Paris, my travel schedule is as follows:
round-trip on April 21, 2019 (Delhi-Bombay-Paris) and return on April 30, 2019 (Paris-Bombay-Delhi) to Jet Airways.
Now Jet Airways canceled my domestic flight (from Delhi to Mumbai on April 21, 19) and (from Bombay to Delhi on May 1, 2019) due to operational problems. I book my flight on the MakeMyTrip website (MMT).
In this case, can MMT take responsibility for the cancellation of Jet Airways and provide me with a replacement flight or I will refund the flight costs.