#139. Purushottama Boris Grebenshikov at the Aspiration-Ground (New York – August 27, 2018) Posted on November 8, 2018January 24, 2019 by Yatkara Boris Grebenshikov (Purushottama) offered a special concert in New York dedicated to Sri Chinmoy. Purushottama performed with a selection of international guests, including several members of the Sri Chinmoy Centre.