Choonilal Devkaran Nanjee (1890–1948), also known as C. D. Desai, was a twentieth-century Indian commodity trader, financier, and philatelist.

Desai was a senior partner in the firm of Messrs. Devkaran Nanjee and Sons, stock, cotton, bullion and exchange brokers.

He made many discoveries among the 1854 lithographed stamps of India and formed an outstanding collection of these classic issues with the assistance of Jal Cooper.

As Jal Cooper noted, Collaborating with Sir Eric Studd, he discovered the 1854 One Anna Red Die I "Substituted Transfer".

[3] The Desai collection was offered for sale to the public in 917 lots by Messrs Robson Lowe, philatelic auctioneers, on 25 and 26 May May 1949.