The Nifty 50 index is seen opening above its important psychological level of 18,300 as indicated by the Nifty futures on Singapore Exchange. Nifty Futures on Singapore Exchange also known as the SGX Nifty Futures fell 0.12 per cent or 22 points to 18,328 amid positive global cues. Asian shares were trading higher with Japan's Nikkei up 0.85 per cent, Hong Kong's Hang Seng up 0.43 per cent and Straits Times rising 0.23 per cent.