As long as they are not causing troubles. There are many Afghans in India.
Veil is prevalent in India. Conversion do take place. One of the reason behind Godhara was the sudden rise in animosity among Hindus and Muslims in Gujarat especially the borderline regions, due to forced conversion of Hindu girls by abducting and raping them and then marrying them, just like the way it happens in Pakistan.
This was the reason the Hindu extremist element got support of locals and few Ministers. They just needed the reason and things got out of bounds very quickly.
Modi was the one who controlled the a more bloodier massacre that could have happened.But you don't know how good Congress is in using Media creating perception.
Many people don't know that in terms of lives lost in comparison to the magnitude of trigger of riot, like burning of train, slaughter of calf etc., Godhara could have result in 2 to 3 times of deaths on both sides. Check the riots in Gujarat post independence.
India is place of extreme paradox. You will see extreme hatred and peaceful coexistence.