Indian troops have discovered an incomplete underground tunnel leading from Pakistan into Jammu and Kashmir, the defence ministry said Saturday.The tunnel was discovered in Pallanwala sector in Jammu district, around 50 metres on the Indian side of the Line of Control (LoC) which pides Kashmir between the two countries. “The dimensions of the tunnel is approximately two-and-a-half feet wide and three-and-a-half feet high and is leading towards POK,” a defence ministry statement said, referring to the Pakistani Kashmir. “It appears to be an incomplete tunnel as no exit has been found on the Indian side. “Troops are carrying out a thorough search of the area to ascertain further details which is taking time due to existing mine field,” it said.