A passport is a travel document issued by a country's government to its citizen, verifying their identity and citizenship

Indian passport come in four distinct categories each serving a specific purpose and identified by a unique color code

The colour coded passport classification system facilitates efficient identification at international borders, while conforming to global passport issuance standards

Blue Passport: Also known as type P passport, this is the ordinary passport and is issued to the general population of India. 

These can be used by regular individuals for leisure, business, or educational trips to foreign countries.

White Passport: These types of passports are issued to only Indian Government officials who are travelling outside the country for official purposes. 

White Passport: These types of passports are issued to only Indian Government officials who are travelling outside the country for official purposes

Maroon Passport: A diplomatic passport is issued to diplomats and eligible government officials for international travel and assignments. It is maroon in colour.

The maroon colour differentiates it from regular or official passports, symbolizing the holder's high-ranking position and duty to represent their country abroad.

Orange Passport: The Orange Passport was an initiative by the Indian government to distinguish passports of less educated citizens, particularly those requiring emigration clearance for travel to a group of specified countries.

These types of passports are designed mainly for people not having education beyond class 10. Besides, these people fall under the ECR category.