Muslims and Sikhs did their share - equally. Hindus just decided to do what they do best - die/flee or convert.
Muslims successfully killed more Hindus initially in Delhi even! Read the official accounts of AARs. Which is why the number of Hindu and Muslim casualties are comparable, even when only 25% of Indians were Muslim then.
The India you live in is different than the India we get to see, and I am not referring to our media they are too India friendly.