New Delhi Problems with land acquisition and environmental clearances have delayed 58 ongoing national highways projects, including 18 in Assam, seven in Jammu and Kashmir and five each in Uttar Pradesh and Madhya Pradesh, said the ministry of road transport and highways in response to a written question.

The projects which are facing delay due to land issues are in Rajasthan (4) and two each in West Bengal, Tamil Nadu, Punjab, Bihar and Andhra Pradesh, it said.