In 2005, the artist achieved a new high in the auction market with the sale of Woman (1955), offered in the Indian Contemporary Art: Paintings, Drawings & Sculpture by Osian's, which concluded on 09 February 2005 at Mumbai, achieving a sale price of ₹6,90,000 ($15,811). 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 1997, the artist achieved a new high in the auction market with the sale of Boat Woman in Kashmir (1958), offered in the Indian Contemporary Art by Christie's, which concluded on 04 June 1997 at London, achieving a sale price of ₹1,07,704 ($3,011). 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 Lovers In The Window (1959), offered in the Indian and Southeast Asian Art: Including Modern Indian Paintings by Sotheby's, which concluded on 24 September 2004 at New York, achieving a sale price of ₹4,96,152 ($10,800). 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 2003, the artist achieved a new high in the auction market with the sale of Untitled (1962), offered in the Fn-Fn: Figurative Non-Figurative Narration: Auctions of Indian Modern & Contemporary Paintings & Books by Osian's, which concluded on 27 November 2003 at Mumbai, achieving a sale price of ₹3,08,000 ($6,712). 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 2023, the artist achieved a new high in the auction market with the sale of Enlightenment (1962), offered in the Winter Live Auction by Saffronart, which concluded on 13 December 2023 at Mumbai, achieving a sale price of ₹80,40,000 ($96,867). 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.

‘I am not literally abstract; there is much of the influence of my environment and atmosphere – I mean, of Kashmir’… The conical forms which we perceive in Santosh’s paintings can be traced to Kashmir: to the coniferous trees, the Kashmiri cap, the jagged roofs of Kashmiri houses, even the mountain peaks. The blues, the greys, the browns – all of which often tend to the pure whiteness of the Himalayan ranges – in Santosh’s paintings prove this point. ‘I am inspired by Kashmir intensely. It is in my blood. When I see other things in other places, the image of Kashmir haunts me with its naked and over laden peaks, the engulfing whiteness of winter and the tall, dark trees rising majestically into the skies’, says Santosh. The artist sensed the possibility of a kind of severity and rigidity in the delineation of this conical form, which might have led him to texture in order to relieve the all too precise structure, to add a new formal dimension. This feeling for Kashmir landscape has grown more subjective during the years he has been away from home.

In 2007, the artist achieved a new high in the auction market with the sale of Untitled (1965), offered in the Masterpieces and Museum Quality Series VIII by Osian's, which concluded on 31 January 2007 at Mumbai, achieving a sale price of ₹38,40,000 ($86,937). 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 1995, the artist achieved a new high in the auction market with the sale of Untitled (1977), offered in the Contemporary Indian Paintings: From The Chester and Davida Herwitz Charitable Trust by Sotheby's, which concluded on 12 June 1995 at New York, achieving a sale price of ₹25,281 ($805). 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 1995, the artist achieved a new high in the auction market with the sale of Untitled (1978), offered in the Contemporary Indian Paintings: From The Chester and Davida Herwitz Charitable Trust by Sotheby's, which concluded on 12 June 1995 at New York, achieving a sale price of ₹99,303 ($3,162). 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 2006, the artist achieved a new high in the auction market with the sale of Untitled (1990), offered in the Indian and Southeast Asian Art: Including Modern Indian Paintings by Sotheby's, which concluded on 29 March 2006 at New York, achieving a sale price of ₹25,47,330 ($57,000). 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 2023, the artist achieved a new high in the auction market with the sale of Untitled (1990), offered in the South Asian Modern and Contemporary Art by Christie's, which concluded on 20 September 2023 at New York, achieving a sale price of ₹57,69,592.29 ($69,300). 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.