Street food in Chandigarh is generally more affordable than dining at a restaurant. The cost of street food in Chandigarh can vary depending on the type of food and the location of the vendor, but in general, street food is very inexpensive. 

For example, you can find street food items like samosas, pakoras, and chaat for as little as 20-30 Indian rupees (less than half a U.S. dollar) per serving. In contrast, dining at a restaurant in Chandigarh can cost anywhere from a few hundred to several thousand Indian rupees per person, depending on the type of restaurant and the dishes ordered.

However, it's worth noting that while street food may be more affordable, it may not always be as hygienic or as comfortable a dining experience as a restaurant. It's important to choose reputable street food vendors who follow proper food safety practices, and to be aware of the risks associated with eating street food in terms of foodborne illness.