4. Given below are four jumbled sentences. Pick the option that gives their correct order.
P: Year after year, his efforts transformed him into a cult gure for the Indian untouchables.
Q: Ambedkar organized a mass conversion to Buddhism for himself and his supporters at Nagpur.
R: After Nagpur, he successfully converted another three lakh to Buddhism at Chandrapur in Maharashtra.
S: It was on 14th October 1956, at Deekshabhoomi, Nagpur, where Ambedkar converted to Buddhism with around half a million of his supporters.