Nifty 1 min chart shows clearly how this a-b-c up move has played out. This over shoot the triangle trend line, just to complete the 'D' wave. And return back into the trend line, indicating the false breakout!
Nifty 1 min chart zoomed in:
Nifty 1 min chart showing the entire triangle formation:
Now let us step back and observe the hourly chart and hourly 9 RSI chart:
Nifty hourly chart with 9 RSI
We can observe the triangle pattern in the RSI data as well!