Weakness can continue if important levels breached.

Two key levels for Nifty to hold on in this market weakness triggered by some global events and Profit booking are 21555 and 21450. Closing below 21450 can lead to further weakness and Nifty can fall to the levels of 21242, 20951 or even 20768. The worst case scenario visible as of now seems to be 20592. In case 20592 is breached Bears will start calling the shots and pull Nifty back levels of 19809 are possible but not probable. (Major Negative News). In case Nifty takes support at 21555 or 21450, form a bottom and bounce resistance will be near 21751, 21839. Closing above 21839 will open the door towards channel top area which can lead Nifty to 22K or even 22363 levels.