Considering your son is in his teens, you must focus on investing in a way that protects your capital. This is because with only a few years before you son enrols into a college, you can’t afford to take risks with the money you accumulate for your son’s education.

Hence, limit your equity exposure to 10-15% and invest the rest in debt-funds that are relatively safer than equity funds.

This shift from growth in wealth to capital protection is critical as the 3-4% extra that equity investments can potentially give is not worth the risk. A sudden downturn in the equity markets can reduce your corpus by 5-6% and upset your financials.