"I started with 'Wonder Balloon'. Since then, television has changed a lot. It has become so big... It has high-definition now," the Oscar-winning composer said here Tuesday at the promo and poster launch of "EVEREST".
Rahman, who had earlier collaborated with Gowariker for his movies like "Lagaan", "Jodhaa Akbar" and "Swades", will now compose for the TV show, produced and written by the filmmaker.
"Ashutosh has given me so many good songs in his movies. It is a great start for me with Ashutosh and Star Plus," he said.
"Ashutosh came to me with a concept, which was so intriguing and beautiful. He has briefed me about 12 characters. In fact, we finished the theme song three days back. We have tried to make it very orchestral," he added.