A few corrections:-

The Partition riots took place in 1947. I am not sure what you think was happening in 1948 and 1949. Perhaps you can enlighten us?

Hindus, Muslims and Sikhs are not different ethnic groups. They are different religious groups. I know your school couldn't teach you the difference. 

Hindus, Muslims and Sikhs are not superstitious groups either. I repeat, they are religious groups.