External Affairs Ministry Secretary Karunatillake Amunugama said the British High Commissioner John Rankin was informed of Sri Lanka's concerns.
The British Home office early this week announced a pilot project under which visitors from India, Pakistan, Bangladesh, Sri Lanka, Nigeria and Ghana would be required from November this year to make a refundable cash deposit of Sterling Pounds 3000 for short term visa applicants.
"The Ambassador told us that this was a temporary move. Only the high risk category applicants would be subject to the rule", Amunugama said.
He said the British High Commissioner had assured that a greater majority of the applicants would not be affected by the rule and it was also refundable.
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British officials in Colombo recently said that over 30,000-35,000 Lankans, mostly students, apply annually for British visas.
Earlier, India had expressed serious concern over the British move and sought clarification from the UK government.
Nigeria has also registered a protest over the policy, warning that it would hamper people-to-people relations between the two countries.