The
Immigration services at the major International Airports
in India and the Foreigners' registration work in seven
major cities, are handled by the Bureau of Immigration
(BOI).
The
field officers in charge of immigration and registration
activities at Delhi, Mumbai, Kolkata, Chennai, Amritsar, Bengaluru and Hyderabad are called Foreigners Regional Registration Officers
(FRROs). Apart from the FRROs who look after the immigration/registration
functions in the above mentioned seven cities, the concerned
District Superintendents of Police function as Foreigners
Registration Officers (FROs) in all the states
in the country.