Data of all traded symbols from all supported exchanges is available. However, as per package purchased by you, concurrent access of from 50 to 500 symbols will be made available to you.
Irrespective of whichever package you choose, you can request data of any symbol at any time. For example, there are around 2000 symbols under NSE Stocks. If you have purchased 50 symbols package and getting realtime updates from 50 symbols, you may send request to our server to stop data for any stocks and replace them with new stocks. This change happens in realtime without any manual intervention (Subscribe & Unsubscribe mechanism)