Ram ashray hotel is one of the best options in mumbai for brunch ( south indian) . We travel to matunga from parle to have brunch here. If u wish to go here on a holiday be prepared for a long queue and waiting at least half an hour. It is a typical udupi restaurant o dont expect anything posh. But the food is amazing. There is quite a lot of variety in dishes u can try.
Their sambhar is also amazing. They also keep sheera for desert which is dam yummy. The prices are also veryy reasonable.