madam i want to kno2 about basil . from where we get them . tell in breif.

Depends where you live Gurdeep. In UK, you can buy it ready grown in pots, as a herb, from several supermarkets. But this is not Indian basil or Shyama Tulsi.

You can buy Indian Basil seeds here from many seed catalogues, including Amazon; http://goo.gl/SIfXDh