Complex sentence: After the partition of India into India and Pakistan in 1947, he moved to Delhi, and then to Bombay (Mumbai), where his first production "Karwat", came in 1948, though it turned out to be a flop.
Split into simpler sentences: After the partition of India into India and Pakistan in 1947, he moved to Delhi. He later moved to Bombay (Mumbai), where his first production, "Karwat", began in 1948, though it turned out to be a flop.