I have a little knowledge about GST, I want to know what exactly is it. Please help me.
GST is an acronym to something you have not defined...IT COULD BE ANYTHING!https://duckduckgo.com/?q=GST
In your country India. It is abbreviation of General Sales Tax.
Or "Goods and Services Tax"? That's what it means in Australia, and also in India, according to my Googling results.
It could also be the Gulf Standard Time timezone.
Wikipedia's disambiguation page lists a whole bunch of other things that GST can stand for: http://en.wikipedia.org/wiki/GST
Guys, this thread is going down hill fast. There's no point in continuing with it. The question has been answered anyway. Closed.