- **Adam Harper**: Awarded the SASTRA Ramanujan Prize in 2019. The award is given annually to young mathematicians for outstanding contributions to mathematics, particularly within areas influenced by Ramanujan.
- Akshay Venkatesh: A renowned mathematician who has received several prestigious awards, including the Fields Medal in 2018, but not the SASTRA Ramanujan Prize in 2019.
- Manjul Bhargava: Another distinguished mathematician, awarded the Fields Medal in 2014, and known for his work in number theory, not the SASTRA Ramanujan Prize in 2019.
- Maryam Mirzakhani: The first woman to win the Fields Medal in 2014, passed away in 2017, and did not win the SASTRA Ramanujan Prize in 2019.

The correct answer is ☑️ **Adam Harper**.

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