UK

Birkbeck has two types of courses one is evening course and another is full time course. For both courses you need Good degree, or equivalent, in a subject other than computer Science, together with some aptitude for programming. Applicants without a degree-level qualification but with significant computing experience may also be considered. INTERNATIONAL ENTRY REQUIREMENTS
If English is not your first language or you have not previously studied in English, our usual requirement is the equivalent of an International English Language Testing System (IELTS Academic Test) score of 6.5, with not less than 6.0 in each of the sub-tests. If you don't meet the minimum IELTS requirement, they offer pre-sessional English courses, foundation programmes and language support services to help candidates to improve there English language skills and get your place at Birkbeck.

Hi,
*Generally, for the less competitive courses in LSE such as sociology (which I have applied for), having a predicted grade of 85+ (with one subject, English being 98) was enough for them to consider me an academically strong candidate. Admittedly, I had good 10th boards grades, but anything above 9 should be fine. *Some courses ask for less (85+) and some ask for more (95+). Ensure that you at least meet these requirements as they are the basic things that you must have in order to even be considered.
*Since most people would view their personal statement as either bad or very good. Nobody who applies to universities like LSE would even think of sending a sub-par.
PS: A good way to look at your personal statement critically is to make a list of questions and see if you answer them.