Could NIFTY be sideways tomorrow.? Expiry special levels

As expected and analysed we did see a strong buying above 17300, though it has been huge gap up, it remained sideways, it was bullish the whole day, now it is trading at very important resistance which is around 17480-17500 and you can also see that this level has acted as a strong demand zone ( support ) previously and hence we can expect this level to act as a Resistance ( supply ) if nifty gaps down then we can see nifty to remain sideways unless 14500 is broken above and sustained