Most material used is cheap quality..time of completion is the target as it fetches more money..so pressure is to sell it ASP..most of the time curing time is simply manipulated...so the concrete is nit evebn cured or mature..most of the ground on which the Pillars are set is wet soft ground..agriculural ones..unsuitable for buildings of high rise structures..its all corrupt practices...
The real estate mafia is to be blamed. Today no honest person can afford a decent house anywhere in India thanks to them. Political money is behind it. This is biggest challenge for new BJP government and Amma. Do you want to be remembered only for the money you made?