Block Deals are trades done between two parties who have agreed to buy / sell the stock in huge quantity at a mutually agreed price. These are Delivery Trades and there can be one or none block deals in a day.
These are associated with a minimum quantity of five lakh shares or a minimum value of Rs 5 crore.
This list gives you Company Name (stock), Client Name (who have participated in the Bulk Deal of the stock), Deal Type (Buy / Sell), Quantity bought / sold and Price at which the shares were bought / sold.