Keep cows ghee in diet, massage your hairs with medicated oil regularly,
do regular exercise, take proper diet, milk,cows ghee in regularly, fresh fruits, dry fruits, green vegetables, protein rich food, proper sleep, take proper care of hairs during travelling,
avoid late night work, overexertion,excessive shampoo, hair conditioners, tea, coffee,cold drinks, chilled water, foods kept in friedge, fast food, bakery food, salty food, hot drinks, oily,spicy ,outside foods.
Best luck.