First of all Hindi TV serials are not equal to Indian TV serials. There are very good regional TV serials. Secondly, the old DD serials like Hum Log and Wagle ki Duniya were very good. But now, People are simply not interested in mundaneness and subtlety. They want to watch scheming mothers in law harassing daughters in law for pure spite. Suffering of others makes them feel good about their own sufferings. I don't know why critics find this so tough to digest. We all seek escapism from mundaneness to some extent. No one wants to come home after working 9 to 7 to watch boring people dealing with their boring issues.