Hello Mr Ashith, and welcome to HCM
First thing to consider is if you have a family history of hair loss, if there is male
baldness in the family. In this case you will be more prone to similar problems.
Other causes to consider are hormonal(thyroid etc), any lifestyle or residence change, stress, any history of recent illness like typhoid, any chemical procedures, etc.
These causes need to be considered and treated as they affect hair growth.
For now you may apply hair
Minoxidil solution to scalp with hair supplements daily like
Follihair. This needs to be continued at least for 2-3 months.
Do
consult a dermatologist as well, to assess your type of hair loss and to give you treatment based on the results. they may also suggest some routine blood tests if required.
if medical ,methods do not work well for you,certain new surgical procedures can be considered such as PRP.
hair transplant etc, as will be advised by your consulting doctor after observation.
Hope this helps you.