About Stock and Stock market :
In different Words, a share or share is a document issued by a company, which entitles its holder to be one of the owners of the company. A share is issued by a company or can be purchased from the stock market.
About Stock :
The Ownership of the company divided share into small parts and each part is called as Stock by investors. A person carrying a share of a company holds that part of ownership in that company.A person holding maximum stocks has maximun ownership called directors, chairman etc.
You should never be in a hurry to invest your money in the nse/bse exchange. So try to have patience and you should also not be very emotional when you invest in the market.