There a lot of Chinese exports but the most unusual low cost Chinese product in global trade must be English language medical education. The demand from India is high and if the numbers are accurate a majority of Indian residents in mainland China are medical students enrolled in English language MBBS courses (Bachelor of Medicine, Bachelor of Surgery). The most recent reported estimate puts the Indian med student population at about 8,000.
According to the 2010 Chinese Census, Indians are the 8th most numerous nationality among foreign residents in mainland China. There are 15,000 Indians, a number that seems low given the larger population of 20,000 Indians in Hong Kong.
Indian students began enrolling in the last decade when modified regulations opened the door to Chinese medical education. Three primary factors drive the phenomenon:
1) Admissions standards for foreign seats at Chinese medical schools are lower compared to Indian medical colleges.
2) Tuition from foreign students is a money earner for Chinese universities but the fees are still much lower compared to the high cost of private Indian medical colleges. (Chinese medical schools are huge and can just add a couple of hundred seats.)
3) A majority of medical students are from Andhra Pradesh, a South Indian state with a particularly strong culture of upper middleclassness (families pushing children to get professional credentials).
There is probably a no more significant conduit of Chinese and Indian cultural interaction than through medical education. By the third year, Indian students must be able to speak some Chinese to work with staff and treat patients at hospitals. Years from now there will be tens of thousands of middle class Indians with years of exposure to China from their university days. I wonder if many of them will have roles in relations between the countries.