Which is this movie?

I just remembered that When i was kid i watched an old movie. Very old movie don’t remember the name of actor and actress but male lead pregnants a lady and he has domestic snakes then on confrontation he asks the lady that he will marry her but she has to take blessings from the snake as a God. He opens the almirah where snake is there and as soon as lady tries to take blessing of snake. He bite her and subsequently she is killed