As per the query, you will be investing 3 lakhs (assuming 50,000 per year) and looking for 10 Lakhs.

If you invest 148907 per year for a period of 5 years then you will get 10 Lakhs in 5 year @ 10% return (I feel that's only possible). So you need to increase the amount of investment to get that kind of return. Non of the education insurance policy will give you that kind of return in 5 years duration. So check other investment options.