$20 says it was shoddy wiring or something similar. So many deaths and accidents happen in India because of a lack of safety standards and training there.
And before someone tries to call me racist, or anti-India, or something, India accounts for 14% of all accidental deaths worldwide and out of every 100k workers in India, 116.8 on average will die in a workplace accident, which is 3X higher than the #2 spot (Pakistan).