This was reply to someone in a mathematics group on linkedin, and a person with an Indian name at that, beginning a discussion going "Boys do good in mathematics than girls" .
Need to correct
"Boys do good in mathematics than girls"
"Boys do better in mathematics than girls"
Other than that this prejudice is self fulfilling vicious circle proved wrong by evidence in India plenty, and prevalent in past in US but based on faulty statistics apart from fostered by social prejudice and male ego in general - when girls are guided away from certain things and into others early on, and they most certainly are, and boys similarly in other directions, the prejudice is likely to become reality simply because children trust elders and also wish mostly to avoid trouble. Which amounts to girls avoiding hard work at school by staying away from science and boys ditto at home by never picking up after themselves and not learning to manage to feed themselves.
Truth is if they are brought up without discrimination, and girls are encouraged to do well academically in science, they excel beyond boys at school level and stay on par right up to entry to doctorates, which is the age they need to look after their reproductive life and so they keep right on doing well at career including science research if their home needs are taken care of with family and social support.
Any person with some honesty and familiarity with India ought to know as much. Daughters are routinely encouraged to do medicine in India while in US it used to be "doctors are male, nurses female" prejudice that needed and still does a hard fight by women entering medicine as doctors. The same is true of more hardcore sciences like physics, but in mathematics as long ago as seventies the class at post graduate level was equally divided across the aisle and grades were far from one way in favour of males.
In many ways the very things seen as backward or embarrassing features of India or even Asia here prove positive in this respect, such as arranged marriage traditions - girls are not brought up with need to please male peers just to be popular and get dates so they can find a match, boys are encouraged to focus on education and not need to get girls and be sport jock (as in US) for that to happen more easily, and both genders are encouraged by parents and elders to focus on education and career while they are young; and they are subconsciously certain they can depend on elders to help with finding a match, so they go on to focus on education and career, science if they are so capable.
Asians excelling in US at science has been noticed there; in fact at one point (not always, just one year) all three women in graduate school in mathematics in one small university were from India. There is nothing wrong with brains of women in west, but witchhunts and witchburning and more recent discouraging of women to enter science or do well at science at any level for sake of popularity and finding someone to marry (male ego not tolerating women doing well is understood all too well everywhere - male students complained if female classmates did better, and male faculty ignoring female students who were brilliant has been known in west) has kept women away while pressure of fashion industry and social pressure to look attractive and concepts about what looks attractive has drained women's time, energies and earnings hugely into those pursuits rather than benefiting women (and consequently their own children and whole society and nation) by allowing them and encouraging them into growth of mind via academics and pursuit of science.
That change can happen only slowly in west, largely because neither subconscious memories of witchunt and witchburning nor need of women to be popular and attractive to find (and keep) a mate is likely to improve any time soon.
But India is a different story, and so is China and other Asian nations of east. This much someone of India ought to be aware of, surely? Unless it is propaganda intended to be self fulfilling. Fortunately India is not ruled by an institution that would find women of intellect and knowledge intimidating or undesirable, and Indian parents and elders are free to make up their own minds and take their own decisions re their daughters. Hence the prevalence and growth in India of women of substance in various career, including mathematics, and far more so in engineering of late, IT more recently, and medicine since over half a century or more.