EMI means credit. Credit cards paid via "Equal Monthly Installments." Financing with monthly payments towards a loan or product purchase. Consider that businesses like Best Buy and Victoria's Secret offer financing on their own store-specific credit cards.
The clue is in the context from the article:
It’s like the people there live on EMIs. Cars, phones,
everything. And even the lower middle class can afford
this stuff. It’s like everyone has an iPhone.
Also, my personal favorite: Grinding. The dance form.
...honestly, I'm an American, and I can't believe that one either.