Delhi School of Economics, Madras School of Economics, and Mumbai School of Economics and Public Policy are reputed institutes for offering quality education in Economics. If you are considering the Mumbai region, Mumbai University’s Kalina campus is a good institute to do a Master’s in economics.
In the Mumbai region, IGIDR and MSEPP are the best options for pursuing MA in Economics with good curriculums. IGIDR should be the first preference if you can score well enough in the entrance exam. A close second is MSEPP but it has a heavy dropout percentage.