They promise to teach our kids a trick to solve the problem but later we came to know that those questions normally asked in competitive exams, like railways. A 8 yr old student don't give railway exams.
Also they are teaching very fast. It's hard for normal kids to grasp it.
All classes held online, and it's not good for kids to study online at this age. Fonts are too small to read. Unnecessary stress on kids eyes.
In 5th day, they will held parent meeting to offer you heavy discount.
So I think oda classes is not a need of students who is taking Primary Education.