The Big B of Data - Indian E-commerce Market 2019

The 3 pertinent questions every eCommerce consumer and social media use should ask  - 

1. Where does the e-commerce transaction data & consumers personal data get stored? Does it get stored in India, in USA or some country that provides cheaper storage? How about China or Pakistan? 
2. Can Indian governments keep a watch over Data Usage if it is stored in another country ? 
3. Can government enforce its Data Privacy law when eCommerce companies store data is another country?