How to get accurate data for intraday trading automation ?

Hi,

I have developed a software which automates intraday trading. I have been using Zerodha’s API for data stream but the LTP of stocks is rounded off to 0.05 ticks. But the actual indicators will work on the accurate data which as shown on the dashboards.
Upon querying Zerodha, I learnt that it is unable to provide the accurate data !
Now from where can I get the accurate data ??