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Heavy conditioners and styling products are made to stick to your hair, but as a result they can cause flaking. Use a clarifying shampoo to stop build-up, and be sure to rinse thoroughly every time you shampoo and condition. Also, avoid using oily or greasy products on your scalp.

Dry scalp: This is a common occurrence, especially during colder months. When you wash your hair, be sure to use a mild shampoo and give yourself a scalp massage to loosen flakes. Resist the temptation to overcondition, which can cause build-up, but do deep condition your hair occasionally if necessary.

Sensitivity: Your scalp might be reacting to harsh ingredients in your shampoo, so try using a gentler product specifically for sensitive scalps.
If neither of the above help reduce flaking, you might have 'real' dandruff. No one knows exactly what causes it but the current theory is that it's a type of yeast that grows out of control. Fortunately, there are a number of over-the-counter shampoos that can help. The most effective ingredients known as antimicrobials, are zinc pyridinethione, selenium sulphide, sulphur and ketoconazole (also available by prescription). If you colour your hair, don't use products with selenium sulphide or sulphur. Coal tar is another option; it's not an antimicrobial, but it does slow the growth of skin cells, which means you'll get fewer flakes.
Dandruff shampoos can be fairly drying, but don't decrease the number of times you wash. Use dandruff shampoo only as often as you need to. The rest of the time, use a shampoo for normal or dry hair (those formulated for oily hair will just add to the dryness) and condition normally. If your dandruff or flaking doesn't improve, consult your doctor or hairdresser for advice.

Fenugreek seeds
Lime
Green Gram Powder
Snake gourd

Other Remedies

Dandruff can be removed by massaging the hair for half an hour with curd which has been kept in the open for three days or with a few drops of lime juice mixed with alma juice every night before going to bed. Another measure, which helps to counteract dandruff, is to dilute cider vinegar with an equal quantity of water and dab this on the hair with cotton wool in between shampooing. Cider vinegar added to the final rinsing water after shampooing also helps to disperse dandruff.

Diet

People should avoid spicy and greasy food because it helps dandruff to increase and spread. People should add more vegetables and fruits on the diet. It is very essential to take fresh foods avoid taking tinned and canned foods add more green vegetables and fruits.
Strong tea and coffee, processed foods should be avoided for the dandruff.

Lifestyle