How can I earn at least 15% returns annually from my mutual funds?

I have been investing in the following mutual funds (direct - growth) via SIPs as well as in lumpsum:
HDFC Balanced Advantage Fund: Rs 5,000 (SIP)
SBI Bluechip Fund: Rs 35,000 (lumpsum)
Aditya Birla Sun Life MNC Fund: Rs 35,000 (lumpsum)
L&T Midcap Fund: Rs 35,000 (lumpsum)
Axis Bluechip Fund: Rs 35,000 (lumpsum)
Nippon India Large Cap Fund: Rs 10,000 (lumpsum)
Nippon India Tax Saver (ELSS) Fund: Rs 5,000 (SIP)

I can invest Rs 15,000 per month. Kindly advise me on how I can improve my portfolio to make at least 15% returns annually.
--Vipul Prajapati

Vivekh Pathak, Founder, Finance and You, responds:

I would suggest you to sit with a certified financial planner or an RIA and write down your goals and then invest. Your portfolio is diversified but it is important to have a direction. You have not shared when you have started investing, what are your goals or when will your goals mature. These are few important requirements that you need to fulfill first for yourself.

Investing with clear written down goals will help you in choosing your investments. Take the help of a CFP or RIA. They can help you in this as they are experts. Remember, choosing mutual funds for a lumpsum and SIP will have different strategies and hence you need to choose funds accordingly.