Any strategies to make good use of Zerodha's low brokerage by having very small targets?

Yes you can do this  but risk involve in this strategy 

- First to see is SMA(5) of in 1 min chat is blow to LTP 

      AND 

- Last SMA(5)  is greater than previous 1 (means -carve taking upward move).

    AND 

-   than as RSI(3) cross 10 in 1 min chart

I use this in 12:00 - 2:40 it work for me 95% .

Be alert for exit

 Time duration 2 min - 5 min

NOTE - DON"T DO SAME FOR SELL