Hope all you witnessed the glenmark story.
If for any reason (profit booking or short retracement) stock breaks 900 level again, it can see a sharp fall towards downside to fill the gap.
confirms the overbought zone. Do not be in hurry! wait for some good price action as it can spend some more time and then break.
NOTE: Trade with caution. It may be result into a runaway gap!
Disclaimer: Take this view only for educational purpose. Trade on your own risk.