Mumbai Angels Network, a premium startup investment platform for early-stage venture investments, has invested in Indi Energy, a forward-looking energy storage startup committed to developing energy storage technologies such as Lithium-ion and Sodium-ion batteries, solid-state batteries, Supercapacitors, etc. as a part of its seed round. While the funding amount remains undisclosed, Indi Energy will be utilizing the funds in bolstering its R&D and scaling up its proprietary Sodium-ion battery technology.