Vasco Sports Club were pushed deeper into the relegation zone after the Goan side went down 1-2 to Mumbai Football Club in the I-League match at the Nehru Stadium in Fatorda on Sunday.
Vasco took the lead in the 6th minute through Sherzad Nazarov's penalty but Mumbai FC fought back with Abhishek Yadav getting the equaliser (10th) and Kalia Kulothungan striking the match winner, just two minutes before the final whistle.
The win helped Mumbai FC collect 27 points while Vasco continue to languish at the bottom of the pool with just 10 points in their kitty.
The visitors played the last 15 minutes with just 10 players after goalkeeper Lihaz Koya was shown the red card for a foul on Sherzad.
Defender James Dissiramah had to don the role of the custodian as Mumbai FC had used all their substitutions by that time.
New coach Agostinho Dias made three changes from the previous match but failed to produce the desired result for Vasco.