Ok, I see, the conclustion is the casle system is created to lead people happy but now it just makes low caste people become untouchable, weaker and poorer.
Thank you for your explanation.
When the social Structure was created in India my be 1000 years ago....India never Existed just like most of the countries in the world.....there was no UN...No Constitution...so there was a need to create a Pseudo Constitution like think that would help society bind together....that system was absolutely flexible ...and pours......and Accepted everyone ....similar to the one India China...but China was never enslaved...and there were rulers who were Chinese....so they could evolve the system with time...on the other hand ...India got Enslaved Multiple times......so there was no leadership that could help system evolve...on top of that ..every conqueror had his own system to impose...this made the entire system twisted...