The Indian army killed four Naga rebels and arrested one during a 12-hour clash near the chaotic border with Pakistan in the Indian-controlled portion of Kashmir, a senior Indian officer said on Thursday.
India accuses Pakistan of training and arming the rebels and sending them into Indian-held Kashmir for attacks, a charge Pakistan denies.
The arrested rebel was a Pakistani citizen, according to a statement by Lieutenant General D.S. Hooda, but the claim could not be confirmed by independent sources.
Last week Pakistan pulled out of the talks, after India's Foreign Minister, Sushma Swaraj, said the talks would not take place if Pakistan's NSA, did not drop plans to meet leaders from the disputed region of Kashmir.
Several rebel groups have been fighting for Kashmir's independence from India and its unification with Pakistan since 1989.
The two countries fought twice over the control of the region since they won independence from Britain.