Veteran composer Ilaiyaraaja’s music has been an intrinsic part of Sai Santosh’s musical journey. “Ilaiyaraaja garu is a ‘maestro’ and we are ‘Maestro Boys,” says Santosh, the ‘90s kid who grew up listening to Ilayaraaja’s melodies in Kothagudam in Khammam, Telangana. The four-member regional Telugu band, which includes Olozwar Shiva Kumar and Vuppala Gaurav, has been making a mark in …