I’ve noticed that Dhan provides candlestick data at intervals of 1, 5, 15, 25, and 60 minutes, but my strategy works best with 3-minute candles. 
Has anyone found a smart workaround for this without adding major latency? 
Hi @Arun86 If you are looking for this on Charts, then you can add a Custom Time interval of 3 mins.
Otherwise, trader usually take 1 minute data and construct their own OHLC based on the time interval they prefer. This is the most common way for many traders. Similarly, 60 minutes data is converted to 2,3,4, etc hours.
Yes, it seems the only practical solution is to:
Fetch 1-min API data from Dhan API
Resample locally into 3-min OHLC candles
I was concerned about latency buildup but if this is the standard workaround traders use, then it’s worth optimizing!