To what levels can the NIFTY drop before the budget?

Markets are currently in a short trading range of 4200 to 4450. A strong support for the NIFTY is the 4,000 and 4,100 levels.
The 4000 level on the NIFTY is a psychological number and the breakaway gap which was seen post-elections.

In the event 4200 breaks, a strong support should be seen at 4000 level.