If your child is in school, you can start planning for their education now. We give the corpus you will need when your child turns 18, depending on the course she chooses. We have done calculations for three sets of parents whose child is either 3, 7 or 11. Education inflation has been assumed at 10%, while growth in savings is assumed at 12% for investing tenure of 10-plus years, and 8% for 6 years.