Rajat K Bose is of the view that Nifty levels of 4287 – 4290 and the Sensex levels of 14475 – 14485 would continue to be crucial levels on the upside. Once they are decisively crossed we can expect to see the higher levels of 4325 – 4350. On the downside, selling pressure would increase if the Nifty were to fall below 4205; in such a situation, expect 4170 – 4140 range to be retested. Unless 4140 is decisively broken, there is no major threat to intermediate uptrend.