Upaasna (1971)
Upaasna is a 1971 Bollywood drama film directed by Mohan. The film stars Sanjay Khan, Mumtaz and Feroz Khan. The film has a very melodious song "Aao tumhe main pyaar sikha du, Sikhla do na". Other songs are "Darpan ko dekha" and "Meri jawani pyaar ko tarse".
More at Wikipedia.