The market, which on Tuesday closed at a fresh high on the back of robust foreign fund inflows, is poised to test the psychological 12,000-mark in the current series expiring on April 25. Index options traders sold a huge number of Nifty puts at 11,800, which is almost at-the money. Significant put writing was also witnessed at 11,700 strike. The put writing reflects huge bullish sentiment in the short term. All the options expire on April 25 and data is provisional. The call side shows 11,800 to be the first hurdle followed by 12,000.