The move comes weeks after the BBC, the national broadcaster of the United Kingdom, released a documentary on Prime Minister Narendra Modi's role in the 2002 Gujarat riots.
The letter highlighted that even during Indira Gandhi's Emergency period, when the government had invoked press censorship, journalists were not denied access to cover the proceedings.
Ned Price, the US State Department spokesperson, in a regular briefing on Wednesday underlined that Washington supports free press around the world and that it is a matter of utmost importance to highlight democratic principles like freedom of expression.
'Authorities must immediately restore full and unrestricted access to the documentary and withdraw regulations under the IT Act that imperil press freedom and freedom of expression online,” the Committee to Protect Journalists said.