Accordng to Murdy & Shibukawa 2001, Odontamblyopus rubicundus is replaced on the west coast of India by O. roseus. Please check if your identification is correct.
Murdy, E. O. and K. Shibukawa 2001: A revision of the gobiid fish genus Odontamblyopus (Gobiidae: Amblyopinae). Ichthyological Research 48 (1): 31-43.