He returned to Tbilisi, where he was granted a certificate of professor of Fine Arts and Technical Studies by the People's Commissariat of the Georgian SSR.

Among the participants of the exhibition were Georges Braque, Marc Chagall, Robert Delaunay, Henri Matisse, Francis Picabia, Pablo Picasso, Liursa, Joan Miró, Survage, Utrillo, Vlamink, and others.

In 1936, while at the peak of his artistic fame, to the surprise of many, Kochar repatriated to the Armenian SSR, without the least bit of doubt that he was leaving Paris for good.

Between 1941 and 1943 Kochar was imprisoned on politically motivated charges, but was eventually freed due to the intervention of his friends from Nersissian School, Karo Halabian and Anastas Mikoyan.

[2] His most recognized works include the statues of David of Sassoun (1959) which has become the symbol of Yerevan, the capital of Armenia; of Vardan Mamikonian (1975); of Komitas (1969) in Echmiadzin.

In 1963 The National Museum of Modern Art Centre Georges Pompidou in Paris acquired one of Kochar's works of "Painting in the Space" (1934).