Indian benchmark index Nifty formed a bearish candle on the daily chart, indicating a short-term reversal pattern on the downside. It ended with an 85.6-point loss at just one point below its previous peak. The index should hold above 18,777 zones to witness upward movement towards 18,888 then 19,000 zones. Analysts predict immediate trading support at 18,710 and 18,666 zones. The broader trading range is expected between 18,550 and 19,000 zones. Technical analysts suggest support zones at 18,700-18,660 and a resistance zone at 18,880-18,900.