Hello, Hair fall has become one of the major issues in youngsters these days. The cause for hair fall could be both external as well as internal. In your case it could be the change of water, stress at work (as most of the software engineers face),unhealthy diet, and also do check for dandruff, because in that case u first need to treat the dandruff to reduce the hair fall. you need to include green leafy vegetables(rich in iron), fruits like orange,papaya etc(vitamin c), take a bowl of oats for breakfast(rich in fibre), and if you are a non vegetarian, then take egg(protein). Prescribing you a Vitamin supplement for hair fall: Tab Folliderm(5mg) 1 - 0 - 1 for 2 months. (biotin) Most importantly a mild oil massage,which will increase the blood flow, enhance the strength of the hair roots, and thus prevent hair fall. Hope this was helpful.