Should I invest the extra amount in Aditya Birla Sun Life Tax Relief 96?

I am 33 years old. I am investing in the following mutual funds:
Aditya Birla Sun Life Tax Relief 96: Rs 2,500
L&T Tax Advantage Fund: Rs 2,500
Axis Long Term Equity Fund: Rs 5,000
Mirae Asset Midcap Fund: Rs 5,000

I can invest extra Rs 2,500 to Rs 3,000. Should I add the amount to ABSL Tax Relief 96 or choose another fund? I have a decent risk appetite. My investment horizon is 15 to 20 years, but for now I'm looking at the next five years. My goals are: buy a house and build a retirement corpus.
--Gaurav Sharma

Subir Jha, Founder, BuckSpeak, responds:

You may add the additional amount to ABSL Tax Relief 96. It is a fund with more than 23 years of track record. It has performed well in different market cycles. Between the four mutual funds, you have a fair exposure between the large cap and mid cap.

Your exposure in the small cap is low and if you can take extra risk, consider adding a small cap fund like Nippon India Small Cap Fund/ DSP Small Cap Fund (don’t be worried by its recent underperformance, it has done well in the long term). I would also recommend a minimum 10-year investment horizon in a small cap fund, especially if you are investing through SIP. The investment can be for your retirement goal.