According to Wikipedia Bombay plan :
"The Bombay Plan is the name commonly given to a World War II-era set of proposals for the development of the post-independence economy of India. The plan, published in 1944/1945 by seven leading Indian industrialists, proposed state intervention in the economic development of the nation after independence from the United Kingdom (which occurred in 1947).
Titled A Brief Memorandum Outlining a Plan of Economic Development for India, the signatories of the Plan were Jehangir Ratanji Dadabhoy Tata, Ghanshyam Das Birla, Ardeshir Dalal, Sri Ram, Kasturbhai Lalbhai, Ardeshir Darabshaw Shroff and John Mathai. The Plan went through two editions: the first was published in January 1944. This first edition became "Part I" of the second edition, published in 2 volumes in 1945 under the editorship of Purushottamdas Thakurdas.
Although Jawaharlal Nehru, the first Prime Minister of India, did not officially accept the plan, "the Nehruvian era witnessed [what was effectively] the implementation of the Bombay Plan; a substantially interventionist state and an economy with a sizeable public sector." Its perceived influence has given it iconic status, and "it is no exaggeration to say that the Bombay Plan has come to occupy something of a mythic position in Indian historiography. There is scarcely a study of postwar Indian economic history that does not point to it as an indicator of the developmental and nationalistic aspiration of the domestic capitalist class.".....
Although the Bombay Plan did not itself propose a socialist agenda, "virtually all" commentators acknowledge "that there is a direct line of continuity from the Bombay Plan of 1944-1945 to the First Five-Year Plan in 1950." An alternative line of reasoning is that the Bombay Plan was a reaction to the widespread social discontent of the 1940s (resulting from unprecedented industrial growth during wartime), and a product of the fear that the movement against colonial rule would become a movement against private property."
It is available online here
and is discussed in books like Ramachandra Guha's "India after Gandhi" and V. Krishna Anath's "India since independence".