Here are a few home remedies that will help with your hair problems.
For dandruff: Soak methi seeds overnight. Make a paste of the seeds and apply to your scalp. Leave on for 30 minutes and wash off completely.
For hair fall: Boil an amla with hisbiscus leaves in a mixture of coconut and gingelly oil. Let cool and strain. Store in a clean jar and use regularly.
For grey hair: Take henna leaves and soak them in water placed in an iron vessel. Let it rest that way for at least 3 hours. Make a paste of the leaves, sour curds and lemon juice. Apply to hair and leave on for another 3 hours. Wash off well with shampoo and conditioner.