The couple were engaged on 25 December 1965, and married on 21 January 1966 in a ceremony at Epsom register office. In his "How a Beatle Lives" profile in the "Evening Standard" in March 1966, Harrison stressed the equality of their relationship and credited Boyd with broadening his outlook. In September and October, after the Beatles' final concert tour, Boyd and Harrison spent six weeks in India, as guests of Indian classical musician Ravi Shankar. While in Bombay, as Harrison continued his sitar studies under Shankar's tutelage, Boyd began learning to play the dilruba, a bow-played string instrument. Due to the attention of fans and the press, they left the city with Shankar and stayed on houseboats on Dal Lake in Kashmir. Upon their return to England, Boyd and Harrison continued to adhere to a lifestyle of yoga and vegetarianism, and Boyd received further tuition on the dilruba from Shiv Dayal Batish.