Nifty has given a negative crossover in the oversold zone. Hence, if it continues to slide downwards, we hold 10100-10000 as the immediate supports, followed by 9950. However, Nifty has managed to close above its crucial level of 10200, and hence, if we see a bounce-back from the current levels, we hold 10270-10350, followed by 10480, as the resistances.