As regards the common Indian language, there are major eighteen languages spoken in Indian.
The best way to insulate a basement wall on the interior is with foam insulation that is adhered or attached directly to the concrete. Any of the following insulation materials are acceptable for this purpose: closed-cell spray polyurethane foam, XPS, EPS, or polyisocyanurate.
Insulating and heating the basement would make sense only if the basement will be used for living space. There is much more surface area (including the floor) through which heat will be lost compared with just insulating the basement ceiling. You can put insulating blankets on the water heater and furnace.