Permits are an official travel document issued by the Government of India for your identification while entering a restricted area. There are basically two kinds of official permits - Inner Line Permit and Protected Area Permit. For an Indian traveller, you are ought to avail an (ILP) Inner Line Permit before visiting Arunachal Pradesh as this place falls under restricted area. All the domestic tourists are to obtain Inner Line Permit for your safekeeping.
With the ILP in hand, you can enter the state through any of the check gates. This permit will be your guide throughout your journey and it is valid for 15 days only. However, it can be extended from any tourism or government offices (Resident Commissioner). If you are looking forward to visit tourist places in Arunachal and seek to get an access to ILP then you will find issuing authorities from any of the places given below - Delhi, Kolkata, Tezpur, Guwahati, Shillong, Dibrugarh, Lakhimpur and Jorhat. The government of Arunachal Pradesh is planning to implement a permit-on-arrival system soon. This innovation will perhaps increase tourism in Arunachal.
2 Passport size photographs
Photocopy of one identity proof (Pan Card/Aadhaar Card/Voter ID)
After filling and duly signing the form enclosed with id proof and passport size photographs, it can be submitted in the tourism office with the required payment to obtain the permit.
One can apply online from -http://www.arunachalilp.com/onlineApp.do
Once the form is filled and submitted, an Application ID is generated that will redirect to a page to upload the photo(s) and document for verification.
An SMS alert with your application number shall be sent to the registered mobile number of the applicant.
Use the Application ID to make the online payment and print the ILP card.
On successful verification and online payment an ILP code will be generated that shall serve like the PNR number in flight and railway ticket.