Which among the following is a short story by the booker prize winner Geetanjali Shree:

The correct option is Bel patra.

Geetanjali Shree is a prominent Hindi novelist and short-story writer who won the prestigious International Booker Prize in 2022 for her novel Tomb of Sand (originally published in Hindi as Ret Samadhi).
Let us look at the works listed in the options to understand their forms:

1. Bel patra (बेल पत्र) is a well-known short story (कहानी) collection/short story written by Geetanjali Shree.
2. Khali jagah (खाली जगह) is a novel (उपन्यास) published in 2006.
3. Hamara shahar us baras (हमारा शहर उस बरस) is a novel published in 1998, dealing with the aftermath of the Babri Masjid demolition.
4. Mai (माई) is her debut novel, published in 1993, which was translated into English and gained widespread acclaim.

Therefore, among the given choices, Bel patra is the correct option representing a short story by the author.