Colleges in Andhra Pradesh

It is definitely a smart move to choose a career which prepares for senior level roles not only in India but across the world. What's most appealing about this course is its flexibility. You don't have to be a Chartered Accountant (CA) to pursue this course. In fact you can start right after 10+2. Owing to its highly professional standards, the ACCA exam is challenging. However, when compared with the US CPA, it is quite easier to handle. The pass rate for ACCA is around 50%, which is much higher than the Indian CA pass rates at 4%-5%.
Fundamental Knowledge: Completion of levels from F1-F3 along with Foundation in Professional Ethics module helps you to earn Diploma in Accounting & Business. These courses include Business Accounting, Management and Financial Accounting. Strengthening your fundamental knowledge will prepare you for the more advanced subjects in the Professional level exams.
Fundamental Skills: The subjects included in the levels (F4-F9) is more tuned towards honing the skills in Financial Accounting, Audit and Taxation. After the completion of all these 9 subjects along with the Professional ethics module, you can earn an Advanced Diploma in Accounting & Business. In case you are more inclined towards Research & Analysis, you also have the option of submitting a project and earning a BSc. In Applied Accounting by Oxford Brookes University.
Professional Essentials and Options: The Professional Essentials (P1-P3) graduates to advanced levels of Financial Analysis and Corporate Governance. There is also an optional segment in the Professional level (P4-P7) which has specializations in Financial Management, Performance Management, Audit & Taxation. Any two out of these four can be opted for.
The certification acquired at this level is Professional Level Certificate & ACCA Affiliate Status. 36 months' of relevant work experience before, during, or after the course, coupled with the completion of these 14 papers makes you eligible for ACCA professional membership.
Eligibility and Exemption: You can start for ACCA right after passing your 12th exams.

You want to pursue BBA which is a Bachelors course and its basic requirements is only the clearance of 12th standard in commerce or science and about arts I don't know that are they applicable for Bachelor in Business courses. So, there are basically no restrictions on age factor to pursue any course in this world as I think and I have seen many students above 50+ %age pursuing many different courses.
And for this particular university, i.e. K.L. University may be the same as they are also in search of students and yes difference may lie if they are looking for scholar (good) students then there might be different procedure like written exam then interview and then selection based on merit list.
So, you have to look on their site for further detailed information and work accordingly.