In an essay, when should an in-text citation be used?
When the author is quoting from a source, or paraphrasing material from another writer, among others.
Was India a supporter if the USSR during the Cold War?
No, the Prime Minister of India, Jawaharlal Nehru, had a non-alignment policy in India following its independence and Partition that didn't allow for the country to take a side in the Cold War.
Is there a gender bias against Clytemnestra in Aeschylus' Oresteia?
Yes, there is a large gender bias in the Oresteia. Clytemnestra is questioned for ruling over her husband's land and property and not giving it to another man, despite being his wife. She is also questioned for taking a lover, and is described throughout the play as "odd", or "manly" because of her intellect and brazen attitude.