Hi welcome to HCm I have gone thru your query regarding your problem of knock knee . It is a matter of concern . This medical condition is very rare but few candidates may have knock knees, also, sometimes candidates misunderstands about knock knees problem and take tension unnecessarily. With little knock knees you can start exercising and yoga to cure this problem. Though 15 days is very less time to rectify the fault but you can try few of the exercise and treatments for knock knees it may help you : Take vitamin D from the sun and calcium supplements, vitamin C - lemon juice and Amla green veges are rich source if it . Virasana, or hero pose, is effective in treating flat feet and knock knees. Doing regular Sit ups help in treating this problem Keep a block between thighs and try to move your legs as close as you can, hold it for 3 mins, keep repeating. In a standing position, bring the legs 4 feet apart and stretch the arms out to the side. Turn the right toes to the right and deeply bend the right knee. Activate the arches and keep the right knee touching the wall. Hold for 30 seconds and repeat on the other side. While sleeping keep a pillow in between your knees All this will make a difference if done regularly for 2-3 months or more Go for yor test .Think positive .Do positive . God helps those ,who help themselves . Hope this helps solves your query .Take care , All the best .Wish Get well soon . Don t hesitate to get back tf have any further query .