Complex sentence: He had his first audition in Amritsar for season 3 but was rejected but he was determined so he went to Delhi for audition and got selected and became the winner in 2007 for which he won 10 lakhs as prize money.
Split into simpler sentences: He had his first audition in Amritsar for season 3 but was soon rejected. He was determined and again went to Delhi for audition and got selected and became the winner in 2007 for which he won 10 lakhs as prize money.