Why does the same technical charts for the same stock from NSE Tame, Google finance, Yahoo finance, Amibroker, not match?

Thanks Nithin,

  1. As a member of the exchange, zerodha receives the tick by data free from the exchange. Am I correct?
  2. So does zerodha PI charting platform would be based on few ticks extracted from the Tick By Tick data, like what u mentioned above?
  3. Would the sum of volumes for whole day would be different in all these charts or it will match?