hi
as u r very much concern about hair loss u need to take regular treatment from dermatologist
it will take long time to treat ur hair
ur hair fall will stop in 2 month
u need to take biotin and other medicine
minoxidil is only USFDA approved drug for hairloss
avoid stress and eat healthy diet

welcome to healthcare magic ....
1)There has been no medical research into the role of garlic and onion therapy in hair regrowth , so its difficult to comment on their role.
2)Hair loss , unfortunately has not many effective treatments.
3)Minoxidil , Rogane both same helps hair regrowth , need to apply it locally twice a day with cotton , effects if any will only be evident by 6-8 months of treatment.
The efeects are not universal i.e not everybody grows hair on its application, majority do , but still a good chunk do not make it.
4)Tab finasteride 1 mg daily - also helps but is just supportive to minoxidil.
5)Most effective and trusted till date is ahir transplant , which can be done in INdia , with good results and a comparitively cheaper price too.
My suggestion - get few basic tests like - Heamoglobin levels and thyroid levels if normal , use Minoxidil 2 % local application for 6 months by when you will know weather it works or not , if not then go for hair transplant.