The major quick fall happened below the 10500-11k zones on the channel breakdown which was the most quickest index and extended fall seen historically. Yet again in the next bounce from 7700 got fizzled out around the channe. The channel again comes to the 9900-10100 zone. Index will try to hit the channel ideally but it is to be seen whether its able to close above those levels for a few sessions or not. Only a sustained closing above the 10500 levels would open up a possibility to testing of the upper end of the channel.
Also given below is the fibonacci retracement levels.