A R Rahman named brand ambassador of Sikkim A R Rahman named brand ambassador of Sikkim Rahman, Who Is Also Referred To As The “Mozart Of Madras', Said He Had Found His Long Lost Brothers And Sisters Here, 2,300 Km Away From Home. PTI | Updated on: 08 Jan 2018, 08:04:22 PM Gangtok: Music maestro A R Rahman was named the official brand ambassador of Sikkim at a function in Gangtok on Monday. Extending a warm welcome to Rahman at the opening ceremony of the Sikkim Red Panda Winter Carnival, Chief Minister Pawan Kumar Chamling said he was grateful to the musician for accepting his proposal.