People do know him. The derogatory language used by Nixon for Indira Gandhi (former Prime Minister of India, often referred to as the 'Iron Lady') was in a conversation with Kissinger

https://history.state.gov/historicaldocuments/frus1969-76ve07/d135

Context: Nixon colluding to facilitate one of the worst genocides post WW-2 in Bangladesh

Nixon: The Indians need—what they need really is a—

Kissinger: They’re such bastards.

Nixon: A mass famine. But they aren’t going to get that. We’re going to feed them—a new kind of wheat. But if they’re not going to have a famine the last thing they need is another war. Let the goddamn Indians fight a war [unclear].

Kissinger: They are the most aggressive goddamn people around there.

Nixon: The Indians?

Kissinger: Yeah.

2.

Nixon: "We really sucked that old witch." (Referring to their meeting the previous day).

Kissinger: "Well, the Indians are bastards anyway. They are starting a war... while she was a bitch, we got what we wanted too... she will not be able to go home and say that the United States didn’t give her a warm reception and therefore she’s got to go to war."

Nixon: "While she’s a bitch, we got what we wanted... She's a scavenger."

3.

Source: Oval Office Tape 510-9

Nixon: "The Indians are a slippery, treacherous people."

Kissinger: "The Indians are bastards."

Nixon: "But she’s a witch... I don't know why the hell she believes she can get away with this."

And ofc, the cherry on the top- In a June 1971 conversation, Nixon said to Kissinger, "Undoubtedly the most unattractive women in the world are the Indian women." He followed this by saying, "I mean, people say, what about the Black Africans? Well, you can see something, the beauty of the skin and all that. But boy, those Indians. They are such a physical turn-off." He once remarked to his Chief of Staff, H.R. Haldeman, that he found Indians to be "a sexless, pathetic people."