INDIA'S 1986/87 CASTOR OIL EXPORTS FALL - TRADERS India's castor oil exports are provisionally estimated at 30,000 tonnes in fiscal 1986/87, ending March 31, against 54,000 tonnes in 1985/86 due to a shortfall in the domestic castorseed crop, private traders said. Drought in parts of the country is expected to reduce the castorseed crop to a provisionally estimated 350,000 tonnes in 1986/87 from 550,000 tonnes in 1985/86, they told Reuters.