The UK is planning tougher visa rules for people from Pakistan, Nigeria, and Sri Lanka, making it harder for them to get work or study visas. This move targets applicants suspected of overstaying or using legal visas to later claim asylum, which allows them to stay in the UK longer. The government is developing new profiling methods to identify and restrict such cases, aiming to reduce abuse of the immigration system. Full details will be released in an upcoming white paper.