Futures contracts of coriander on the NCDEX extended gains and hit a one week high in anticipation of a decline in output in 2016-17 (Oct-Sep). The most-active April contract traded on the NCDEX up 1.1%.Coriander estimated output at 320,000 tonnes down 20% from 400,000 tonnes of previous year. Arrivals of coriander in Kota were pegged at 15,000 bags (1bag=40kg) up 5,000 bags.