The Bun Tikki in front of IP College is a legend in itself. It's basically a desi burger with a tikki that's first drenched in a runny chickpea and chutney mixture, and then cooked to a crisp, flavourful perfection.
Don't let the size of this tiny stall fool you into thinking that it's got nothing to offer. Try their bun tikki (for INR 30/40), and you'll know. Orange juice, aloo chaat, and chole kulche are some of the other things you can try here.