There is lot of emphasis on education across all strata of society which got exacerbated by schools like narayana and chaitanya.
For those who couldnt make it to the best top 30-40 institutes, their second best chance to prove themselves is by going abroad. In my village, people send their kids to us due to status pressure very similar to punjab. Many do stupid course but they feel that those who stayed backed in India are not capable of going abroad. Plus the Indian mentality to convert to rupees they feel $80k job 55-60 lpa job is better than 3.5 in TCS.
Many parents don't even know if their kids are doing well but simply the upgrade in lifestyle they feel they are doing better in US than India.
Many villages are getting hollowed out as the young are leaving the countries in hoardes, recent shooting and killing of multiple Indians in US is bringing light to realties of situation. Many parents are reconsidering sending not but for many US can open doors in getting good matches, higher status in their village and respect even though they earn less than many businesses in india