Question: Who was the Indian music composer and singer who won an award in 2003 that worked extensively with Bhaskarabhatla Ravi Kumar?
Sentence (from "O. P. Nayyar"): Nayyar worked extensively with singers Geeta Dutt, Asha Bhosle and Mohammed Rafi but not with leading Bollywood female singer Lata Mangeshkar.
Relevant evidence: No