Hey @ChetanJain915, if you still can't find the songs in question, feel free to take a look at some of the discussions we had in the past where instructors shared their advice on where to best look for free background music:
For information on our copyright policy, please check this support article.
Sorry that I'm unable to assist you with your specific question, but I hope these tips are useful for you!
Bella Almeida
Udemy Community