As far as India-Pakistan is considered, the sectarianism was always started by Pakistan. It's only in the last decade that Indians are paying it back.
When almost all Indians were in the Hindu-Muslim bhai bhai stage, Pakistan under Imran Khan used to see a cricket match against India as waging Jihad. Waqar as recently as 3-4 years back said he liked Rizwan doing namaz among Hindus. It was nice to see Rizwan being bullied during the last WC in India.