With a magnificent maiden double-hundred on a dusty Chennai track, Indian skipper MS Dhoni achieved many unprecedented heights. Not only did he break Sachin Tendulkar's record of highest Test score by an Indian skipper, Dhoni also became the first Indian wicketkeeper to achieve this feat in the history of Test cricket.
In the 144th over, Dhoni smashed a huge six off offspinner Nathan Lyon to reach 217 and then stole a single to surpass Tendulkar's score of 217 which he scored against New Zealand on October 29, 1999 at Ahmedabad.
Here is a look at the various records that Dhoni broke during his brilliant knock against Australia.
# Dhoni registered the highest Test score by an Indian wicketkeeper. In 1964, Budhi Kunderan set this landmark after scoring 192 against England in Chennai.
# Dhoni registered the highest Test score in history by a wicketkeeper-captain, surpassing Alec Stewart's 164 of England against South Africa in 1998. The Indian captain also became the first Indian wicketkeeper to register a double-hundred. Dhoni is the seventh wicketkeeper in the world to register 200.
# During his innings, Dhoni also became the first Indian wicketkeeper to complete 4,000 Test runs.
# 224 is Dhoni's career best Test score. His previous best was 148 against Pakistan in 2006.
# This was also the highest score by an Indian captain against Australia. Previously, Mohammad Azharuddin scored 163 not out against Australia in 1998 at Eden Gardens.
# Dhoni also became the first wicketkeeper to score a double-century in a single day as well as the first Indian batsman to score a double-century against Australia in a single day. The previous best was 195 by Virender Sehwag against Australia in Melbourne in 2003.
# Dhoni is the fourth Indian captain in Test history to score a double-century after MAK Pataudi (203) against England, Sunil Gavaskar (205) against West Indies and Tendulkar (217) against New Zealand.
# Dhoni's 224 is the third highest score by any wicketkeeper in Test cricket history, behind Andy Flower's 232 against India in 2000 at Nagpur and Kumar Sangakkara's 230 against Pakistan in 2002 at Lahore.
# This is the third highest individual Test score in Chennai after Virender Sehwag's 319 against Pakistan and Gavaskar's 236 not out against West Indies in 1983.
# Dhoni is the third captain in Test cricket history to slam a double-century at No. 6 after Don Bradman (236) and Hanif Mohammad (203).