Markets may see a gap-up opening owing to gains in US and Asian indices after the recent sell-off. A halt in the selloff of US treasury instruments and crude prices falling to $85.5 per barrel bode well for the markets. However, upside is likely to be capped given the broader economic uncertainty, and the ongoing FII selling will keep investors on a cautious note. Traders will take selective bets ahead of tomorrow's credit policy announcement. Technically, Nifty could face hurdles at the 19666 mark.