Our India has always been the treasure of great scientists, but ironically we still look upon the west and consider them as the inventors of great things.
I think the learnt scholar Dr. Bhimrao Ambedkar must not be well versed in Sanskrit that's why he was unable to find the real meaning of shlokas of Manu Smriti and decided to burn it.
When Jinnah tried to include complete Bengal in his demand package, the Bengali Hindu Homeland movement fought for a land for Hindus to be retained in the India. That Hindu homeland is what we know as West Bengal today.