Check the following chart. As we can see there is probable Inverted head and shoulder forming in the Nifty bottom. In case Nifty ends up above 3160 level then we can see the target of 3775.
"One should buy only if Nifty closes above 3160"
x=height of the head and shoulder ie 3148-2524=624,
Targert = 3148+624= 3772