30,000 LEDs is a crapload of light, as anyone who has been around an LED flashlight will tell you. It's also cheaper than sin to power them (the LEDs themselves are quite the opposite), which means it's a highly effective solution for lighting public spaces. A far more palatable option too, for all those families in Mumbai's suburbs affected by load-shedding.
It would also mean a much nicer way to make Mumbai (indeed, most of India's large cities) a greener place. And these guys wouldn't need to get all activist on us.