You seem to be having androgenetic alopecia
or male pattern baldness
which is governed by hereditary as well as hormonal(androgenic) factors. Start using 5% minoxidil
solution( coverit ax, hair4u etc) 1 ml twice in a day. You can also take finesteride 1 mg once in a day. This baldness takes time to respond. It might take 3 months to 6 months to have desirable response. If this doesn't lead to much response one can also go with sessions of mesotherapy where in minoxidil/stem cell
factors/platelet rich plasma is directly instilled in scalp with micro needles. It is a pain free procedure done by a dermatologist
. Hope that solves your query. Take care.