"We are losing the originality and the core of our Indian music," says Shankar, himself a trained Hindustani classical musician who plays the sitar and tabla, the Indian pair-drums.
At the same time, Shankar's work as a global ambassador of music has borne fruit, Sharma says: "Because the music has gone to the West, we're getting lots of new musical aspirants from the Western countries."
When jazz artist Herbie Hancock was in New Delhi a few years ago, he stopped by Sharma's shop to buy a sitar.
And in one of the shop's display windows gleams a newly crafted sitar made of teak.
"That," Sharma said, "is for Bill Gates."
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