If people on India would spend the same in energy and trash, per citizen, as USA people do...
Small electric cars can be desinged to be nice looking. These home made projcts it's just too home made to look good.
Concentrated solar power (Solar CLP) looks intereting :
Solar SLP could be better if they could use photovoltaics and heat combined. There are some solar cells that handle more than 100x SUNs concentrated in a small spot, with efficience of 40%. But it operates in a temperature bellow 100* celsios (water ebulition) and so can't use the heat to move turbines. If they managed to create a new version, able to handle let's say 120* celsius or more in good efficiencey, they would be able to create a system much more efficient, making use of photovoltaic and also heat for steam to move turbines.
For storage I'm not sure the temperature needed, since they use melted sault.
Hydro electric it's still cheaper but require a huge initial investment, so the investment takes longer to return. There is also a enviroment impact.