Hey Ayoo, Kiddo is rite 
its "Mohani Lagayu ki" - I am preety much sure Lady singer is Tirtha Kumari Shrestha i forgot Male singer name.
according to to Music Nepal

Song Title :	Mohani Lagayouki
Singer(s) :	Chandra Kala Shah, Madhu Babu Thapa
Album :	Thet-2
Music :	Madhu Babu Thapa
Lyricist :	Madhu Babu Thapa

Thanks to Anil Subedi for finding this song :)