Britain today issued details of tighter rules for international students from India and elsewhere and said bogus students will find it difficult to gain entry and work in the country, illegally. Informed sources in New Delhi said, the details announced today comes days after Britain suspended issuing student visas in north India, Bangladesh and Nepal, suspecting large scale irregularities.Unveiling details of the points system for those wishing to earn British Citizenship from next year, Home Secretary Alan Johnson said genuine students will continue to be welcome in the country. Earlier on Sunday, Johnson had announced tightening of the British student visa regime. The new regulations will ensure that students studying below degree level have a limited ability to work in the UK, and that their dependants cannot work in the country, at all.AIR correspondent adds, immigration is a major issue in the forthcoming general elections as the opposition Conservative party accuses the Labour of failing on the front.