In 2007, the artist achieved a new high in the auction market with the sale of Untitled (1955), offered in the The Masterpieces & ABC Series: Includes Indian Modern & Contemporary Art Books, Popular Culture & Pakistani Film Posters by Osian's, which concluded on 27 July 2007 at New Delhi, achieving a sale price of ₹9,00,000 ($22,233). This record marked a defining moment in the artist's market history, reflecting both the significance of the artwork and its reception within the broader art world.

In 2004, the artist achieved a new high in the auction market with the sale of Musician (1960), offered in the The Masterpieces & Museum Quality Series: Indian Contemporary Art – Books, Paintings & Sculpture by Osian's, which concluded on 15 October 2004 at New Delhi, achieving a sale price of ₹1,61,068 ($3,512). This record marked a defining moment in the artist's market history, reflecting both the significance of the artwork and its reception within the broader art world.

My contention is that Sunil Madhav Sen always found a special pleasure in delineating human figures - even when he painted gods and goddesses (Durga, Krishna, Radha, Jagannath, Balaram, Ganesh, Siv, etc.). He is admittedly a religious person and he has painted almost the whole gamut of the Hindu pantheon. But we should not try to establish a casual relationship between his being a religious person and the so-called religious character of his subjects. To my mind Sunil Madhav is primarily interested in the immense possibilities of human anatomy, its strength and grandeur, its verve and vigour.

In 2006, the artist achieved a new high in the auction market with the sale of A Joy Full Mood (1979), offered in the Historical Series III by Osian's, which concluded on 24 November 2006 at New Delhi, achieving a sale price of ₹6,30,000 ($14,041). This record marked a defining moment in the artist's market history, reflecting both the significance of the artwork and its reception within the broader art world.