Explanation:

All statements are correct.

• The Act empowers the Centre to require that any forest land diverted for non-forestry purposes be duly compensated. It also extends its remit to land which is not officially classified as ‘forest’ in State or Central government records. 

• It also exempts certain types of land from the purview of the Act. These include land within 100 km of India’s border needed for national security projects, small roadside amenities, and public roads leading to a habitation. 

• The state government requires prior approval of the central government to assign any forest land to a private entity. The Bill extends this to all entities, and allows the assignment to be made on terms and conditions specified by the central government. 

Hence option 4th is correct.