You must have 12-13 years of primary & secondary education to qualify for admission to university. The equivalent of K-12 in US, A-levels in UK, etc. Do you have India's 10th grade qualifications, or 12th, since many Indians consider completing 10th grade to be "completing secondary."
Have you studied the university's website to determine whether you meet all requirements to apply for admission? Do your grades, test scores, etc, exceed minimums required to apply? Are your IELTS scores on each part, as well as overall score, at least 6.5? Even with 6.5 or better on each part, foreign students tell me it typically takes them twice as long to do homework as for native speakers of English.