Explanation:

- Option 1: Amit Khatri

- He broke the national under-20 record in the 10,000 m race walk in January 2021.

- Amit has shown promising talent in race walking events.

- Correct Answer

- Option 2: Naresh Kumar

- No notable record in the 10,000 m race walk for the under-20 category.

- May have achievements in different athletic events.

- Option 3: Rahul Bind

- Another talented athlete but not related to this record-breaking event.

- Active in athletics but does not hold the record in this event.

- Option 4: Paramdeep Mor

- Primarily associated with different athletic activities.

- Did not set the record in the 10,000 m race walk in 2021.