Indian street food is popular for several reasons. Firstly, it's often very flavorful and satisfying, with a wide variety of dishes that cater to different tastes and preferences. Indian street food vendors use a range of spices, herbs, and sauces to create complex and delicious flavors, which can be very appealing to customers.

Secondly, Indian street food is often very affordable, making it accessible to people from all walks of life. Street food vendors typically operate with low overhead costs and can produce food quickly and in large quantities, allowing them to offer their dishes at low prices.

Thirdly, Indian street food is often very convenient, with many street food vendors operating in busy areas like markets, train stations, and bus stops. This makes it easy for people to grab a quick bite on the go, or to enjoy a snack while running errands.

Finally, Indian street food is a part of the country's cultural heritage and has a long history in India. Many street food vendors have been operating for generations, and their dishes have become an integral part of the local food culture. This makes Indian street food not just a source of sustenance, but also a source of pride and identity for many Indians.