1923 In summer settles down in Paris.
Kochar’s first one-man show in Paris opens in the “Societe des Savants” hall of the “Apaga” (Future) newspaper.
Participates in the “Salon des Independants” and “Salon d’Automne” exhibitions.
Praising articles about him by prominent art critics are published in periodicals on modern art.
1925 Marries Vardeni in January.
Participates in the international exhibition “L’art d’Aujourd’hui”.
An admiring article by Andre Pascal- Levi was published in the “Les Artistes d’Aujourd’hui” (“Artists of Today”) magazine.
The one man-show of Kotchar’s paintings and graphic works was opened in “La Sacre du Printemp” Gallery. Author of the preface to the catalogue: Waldemar George.
The exhibition was echoed by “Revue du vrai et du beau”, “Les Artistes d’Aujourd’hui”, “La Revue Moderne” magazines and other periodicals.
1927 Does design work at SAMARA ceramics factory.
1928 In autumn Kochar’s wife, Vardeni, dies from tuberculosis.
”Les Peintures dans l’espace de Kotchar” (“Kochar’s Painting in Space”) one-man show opens in “Van Leer” Gallery.
1929 Kochar presents works of the “Painting in Space” series at the international exhibition ”Panorama de L’art Contemporain, organized in the halls of “BONAPART” Publishers.
Starts to collaborate with Leonce Rosenberg, the well-known patron and connoisseur of modern art, Director of L’Effort Moderne Art Gallery.