What Is The Treatment For Hair Growth?

Hi Doctor, I am 35 years of age and I started loosing at the age of 25 years. I kept on using ayurvedic hair oil and oral medications. But the male pattern baldness I could not avoided. Now my frontal portion has very few hair. I would like to know about stem cell therapy which I can hope for new hair growth on my frontal part of my head. I live in Bangalore where this facility is available and how much will be the cost ?