* 1948 Inaugural Exhb. Progressive Artists Group, Bombay.
* 1948, 49 Exhb. Bombay Art Society, Bombay.
* 1949 Salon de Mai, Paris and Stanford University, USA.
* 1949-55 Group Exhb. with Progressive Artists Group, Bombay.
* 1951, 56 Exhb. in Basle.
* 1954, 57 Exhibited at the Venice Biennale, Venice.
* 1955-56 Contemporary Indian Art, travelling exhb. to USSR, Romania, Czechoslovakia, Hungary and Bulgaria.
* 1957 Exhb., Dhoomimal Art Gallery, New Delhi (Also in I994).
* 1958 Twenty Artist's, New Delhi.
* 1998 The Moderns, Inaugural Exhb. National Gallery of Modern Art, Mumbai.
* 2003 Manifestations, organised by Delhi Art Gallery, World Trade Center, Mumbai and Delhi Art Gallery, New Delhi.
* 2004 Manifestations II, organised by Delhi Art Gallery, Jehangir Art Gallery, Mumbai and Delhi Art Gallery, New Delhi.
* 2005 Manifestations III, organised by Delhi Art Gallery, Nehru Center, Mumbai and Lalit Kala Akademi, New Delhi.
* National Gallery of Modern Art, New Delhi.
* Bombay Art Society, Mumbai.
* Lalit Kala Academy, New Delhi.
* Dhoomimal Art Gallery, New Delhi.
* Tata Institute of Fundamental Research, Mumbai.
* Atomic Research Centre, Mumbai.
* Ministry of Culture, Govt. of India, New Delhi.
* State Museum of Nagpur, Baroda and Hyderabad
* International Art Galleries at Bangkok, Warsaw, Prague, Budapest, Bucharest, Sofia and Venice.
* Delhi Art Gallery, New Delhi.
Awards received by H.A.Gade:
* 1956 Gold Medals, Annual Exhb. of the Bombay Art Society, Bombay.
* Received several awards at Delhi, Calcutta, and Hyderabad.
* Received award in Maharashtra State Art Exhb.
* 1962 Received award, Saigon Biennale.
He has a good understanding of the pictorial dimensions of colour, and was referred as a painters' painter. He had revolted against the traditions of academic art which was introduced by the Britishers in the academic system. He articulated dynamic and spontaneous style. Initially he painted landscapes using water colours later on shifted to oils on canvas. Colour is an important element in his paintings. He passed away in the year 2001.
In the years 1939-44 he served as a teacher in Mathematics and Science. From 1944-48 he served the Spencer Training College in Jabalpur.