The move comes after instances were noticed in which some India-bound passengers claimed duty free allowances in a group instead on individual basis, customs officials said.
Following which, a note has been incorporated in the customs declaration form, which needs to be filled by all passengers coming to the country, for information.
"The free allowances shall not be pooled with the free allowance of any other passenger," the note reads.
Customs duty is leviable at the rate of 36.05 per cent on the value of the dutiable goods that is in the excess of free allowances.
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In a recently modified 'Indian Customs Declaration Form', flyers have also been informed customs duty leviable on flat panel televisions including LCD, LED and Plasma.
Passengers of Indian origin and foreigners of over 10 years of age residing in India and coming from any country other than China, Nepal, Bhutan and Myanmar can bring goods worth Rs 45,000 along with them without payment of any duty.
A passenger can also bring 100 sticks of cigarettes, 25 cigars and 150 gms of tobacco without paying duty on them.
Tourists of foreign origin can bring gifts and souvenirs worth Rs 8,000 without any payment of the customs duty.
As per existing rules, Indian passengers who have been residing abroad for over one year can bring gold jewellery worth Rs one lakh (for women) and Rs 50,000 (for men) duty free with them.