If you wish to apply to kings college you need to know the application deadline, and Indian students pass their 12th exam in after April, and the deadline to apply for September intake is January so I will recommend you if you are looking for the program that you wish to apply just look for deadlines, some programs are also available in January intake so may get chance to apply for. Just take your IELTS exam as soon as you clear your 12th class do wait for anything as you will need both academic scores as well as IELTS. You may also call the admission department for the assistance just look for their phone number on their website, most universities offer waiver in IELTS but kings college may not offer waiver. Make sure to above 85 % in academic results in 12th as their prerequisites are 85% and above for CBSE students and IELTS 7 bands overall and 6.5 in each component. The average for an undergraduate student is around 20,000 pounds for international students and for postgraduate