NEW DELHI, Nov. 6 (Xinhua) -- India plans to test-fire an indigenously developed missile "K-4", which has a strike range of nearly 3,500 km, on Friday from an underwater platform off the coast of southern state of Andhra Pradesh, media reports said Wednesday.

According to the reports, the missile system is being developed by India's Defence Research and Development Organisation (DRDO) for the "Arihant" class of nuclear submarines which are being built by the country.

"As per plans, the DRDO will carry out test-firing of the K-4 nuclear missile from an underwater platform off the Vishakhapatnam coast on Friday. During the trial, the DRDO will test the advanced systems in the missile system," the media quoted government sources as saying.

"K-4" is said to be one of the two underwater missiles that are being developed by India, the other one being "BO-5 missile" that has a strike range of over 700 km.