Seems we are in final wave from the low of 17607 so caution should be exercised in long positions. Seems wave (iii) may have ended and Irregular Correction is unfolding in wave (iv). If its a case then Wave C can extend till 123%-138% of A, where initialing a long would be prudent. Negation above day high.
It seems BN completed 3.i @ 20462 and corrective waves are unfolding which is about to complete in coming days. Holding 20000, chances are high to surge ahead. Seems its a Buy on Dips.