Thanks for writing in.
Most likely cause in your case is male pattern baldness
There is no 100% cure in this disease as the problem is hormonal and ongoing.
Stem cell therapy
and meso therapy is a new good option.It can stop hair loss and grow few new hair also.
Also you can apply some lotions like nizoral lotion and few tablets of biotin will be helpful .
is a last resort and for those who have lost almost all frontal hair.
Cost can be 1-3 lakh.
A visit to dermatologist
will be helpful for diagnosis and proper treatment of the extent of alopecia
Hope this helps.