RELIANCE - RSI Divergence?

I am trying to learn RSI divergence and from what I have learnt so far; that yesterday's (Aug 28) low and low on Jul 10 were at sample price line (around 2426). But the RSI are entirely different.
I averaged few more stocks yesterday expecting the price reversal because the RSI also is indicating oversold + price close below lower BB :)

Anyone has any idea how to read this? or I am using RSI entirely wrong?

RELIANCE