A 57-year-old mother has placed India's first gay matrimonial advertisement, seeking a groom for her son in a country where homosexuality is illegal.

Mumbai resident Padma Iyer hit the headlines when her advertisement appeared in a daily newspaper on Tuesday, mimicking the style of traditional matrimonials placed by parents that fill the pages of India's newspapers.

"Seeking 25-40, well-placed, animal-loving, vegetarian GROOM for my SON (36, 5'11") who works with an NGO," said the advertisement in the Mumbai tabloid Mid-Day.