Who is the highest run scorer in an over in a test match cricket?

The correct option is Jasprit Bumrah.

Explanation and Details:

In Test match cricket, the record for scoring the highest number of runs in a single over is held by India's fast bowler Jasprit Bumrah.

This remarkable feat occurred on July 2, 2022, during the rescheduled fifth Test match between India and England at Edgbaston, Birmingham. Jasprit Bumrah, acting as the captain of the Indian team for that match, scored 28 runs off his bat in an over bowled by Stuart Broad.

The over went for a total of 35 runs, making it the most expensive over in the history of Test cricket:

• Ball 1: 4 runs (four)
• Ball 2: 5 runs (wide + 4 runs)
• Ball 3: 7 runs (no-ball + 6 runs)
• Ball 4: 4 runs (four)
• Ball 5: 4 runs (four)
• Ball 6: 4 runs (four)
• Ball 7: 6 runs (six)
• Ball 8: 1 run (single)

This surpassed the previous record of 28 runs in a Test over, which was jointly held by Brian Lara (against Robin Peterson in 2003), George Bailey (against James Anderson in 2013), and Keshav Maharaj (against Joe Root in 2020).