The money will be kept by the Government if visitors do not return home by the time their visas expire.
A pilot scheme, introduced by Home Secretary Theresa May, will target hundreds of people coming to Britain on six-month visit visas from India, Pakistan, Nigeria, Ghana, Sri Lanka and Bangladesh.
The countries have been picked for their high number of visa applications and what the Government sees as relatively high levels of immigration abuse and fraud, reports the Sunday Times.
