To make the procedure easier and accessible to prospective visitors, advertisements been issued to electronic and print media of Assam on how and where the ILPs could be obtained.
The awareness campaign has been necessitated following arrival of huge number of visitors without valid ILPs after the inauguration of railway line to Itanagar, the sources said.
As per the Bengal Eastern Frontier Regulation, 1873, all visitors from outside the state are required to obtain ILP.
Hoardings in English and Assamese languages were also being put up in all 20 railway stations from Dekargaon (Tezpur) to Borum (Naharlagun).