Watch Shap Mochan Full Movie Free Online 123Movies. Young Mahendra belongs to a family of musicians, but once the family is cursed by their teacher. Mahendra's elder brother becomes blind and to avoid the same fate he goes to Kolkata and lives in the house of his father's friend Umeshchandra. He gets romantically involved with Umeshchandra's daughter Madhuri. Madhuri tries to make Mahendra modern and pursue his musical career. Despite his good singing ability, Mahendra refuses to accept this due to his family values. He leaves their home and takes shelter in Kolkata. But the curse strikes him also and he falls seriously ill.