Complex sentence: He came to India as a teenager on the invitation of Pune after a close friend of Chika introduced him to Nigel Empson, a manager in India, who then brought him to the notice of Pune FC leading to his present contract.
Split into simpler sentences: He came to India as a teenager on the invitation of PFC. A close friend of Chika introduced him to Nigel Empson, a manager in India, who then brought him to the notice of PFC leading to his present contract.