Watch the melodious classic evergreen hindi song Koi Aaya Dhadkan Kehti Hain, from the bollywood blockbuster superhit romantic old hindi movie Lajwanti (1958) starring Nargis Dutt, Naaz, Balraj Sahni, Baby Naaz, Prithviraj Kapoor, Prabhudayall Radhakrishanan, Mumtaz, Sheela, Leela Mishra, Prabhu Dayal. Produced by Mohan Segal. Music by S.D. Burman. Directed by Narendra Suri. This song is sung by Asha Bhosle.