Local products- poor customer feedback
They do not train the salespersons who visit retail shops and distribute the products at regular intervals. Such training set-ups are never covered by the mass media. They want to sell by any means.
Our consumer market is huge (130 million). Only a few top firms have R&D facilities (worth noticing).
Most labels do not mention complete postal address to encourage users/consumers to write, and hardly any of them even acknowledge letters.
The motivation is on quick profits. In a market where demand is more than supply (of quality products), there is a tendency to offer goods with lower production cost & higher profits.
Add the amateurish and pitiable condition of the regulatory network. It is a neglected science (how science becomes art?).
The political masters cannot hide that they are politicians!