COLOMBO, Sri Lanka (AP) _ Indian mediators seeking an end to the civil war in Sri Lanka on Friday ended three days of talks with President Junius R. Jayewardene that an official said were ''neither positive nor negative.''

The Indian Embassy official, speaking on condition of anonymity, said the talks were part of a continuing effort to end the three-year Tamil insurgency on the island that has claimed at least 4,500 lives.

Tamils comprise 18 percent of Sri Lanaka's 16 million population. Most are Hindus, and they claim discrimination by the majority Buddhist Sinhalese. Extremist Tamils want a separate nation in the north and east of the island where they predominate.