A World Bank study reported in Bloomberg suggests there is a huge gap in maths understanding and it has direct relationship with overall economic progress.
If other states are similar to the ones studied then it would mean that 17 million Indian students don’t meet the lowest international benchmark of “some basic mathematical knowledge.” That’s 22 times the corresponding figure for the U.S
But they also suggest that
The variance has less to do with household income, caste, parental literacy or wealth; more of it may be due to the quality of schooling a child receives.
this is a “hopeful sign” because “it is easier to change behavior among teachers and to improve schools, than it is to do the same thing among parents.”