With today's draw, the visitors earned three points from their last three matches and 16 points from as many matches while Wahingdoh went a place up securing third place and 27 points from 17 matches.
Both teams scored a goal each in the first 45 minutes of the match through Josimar Martins and Kim Seong-Yong respectively.
With title hope in their mind, the home side began the match with attacking football on display which was also equally matched by the visiting rivals.
Yong missed when he failed in controlling the ball leaving Mumbai FC keeper an easy chance to collect the ball.
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Attacking Royal players Densill Theobald and Seong-Yong made clean quick passes only when Densill's powerful right footer went just above the bar in the 20th minute mark.
Three minutes later, Josimar scored the solitary goal for Mumbai FC when he took advantage of a defensive lapse.
Continuing with their attack, Wahingdoh was rewarded in the 34th minute through Kim Seong-Yong as they leveled the score.
On the other hand, the visitors brought in R Vashum and C Abranches while Abhishek and Climax were benched.