Shafali Verma hit two sixes to reach 199

Watch: Shafali Verma rewrote record books with the fastest double century in women's Tests, breaking Annabel Sutherland's record from earlier this year amid a spate of batting milestones during the India-South Africa Chennai Test.

Also read: Shafali Verma, Smriti Mandhana put on world record opening stand

Shafali Verma, along with Smriti Mandhana, put on the biggest opening stand in women's Tests, amassing 291. They came within 17 runs of breaking Lindsay Reeler and Denise Annetts' all-time record of 309. Mandhana cracked a career-best 149, departing in the 52nd over, but Verma did not slow down.

She reached her double century in 194 balls: across genders, only Nathan Astle, Virender Sehwag (thrice), Brendon McCullum, and Ben Stokes have hit double tons faster than a run a ball.

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Verma is also the second-youngest to hit a double century, barely a year older than 19-year-old Mithali Raj in 2002. She reached her double ton in style, hitting back-to-back sixes off Delmi Tucker to go from 187 to 199 before pushing the next delivery to the off side to reach the landmark. Three balls later, India crossed 400 runs.

It was the first time a player hit more than two sixes in a women's Test innings. She finished with eight.

Her innings ended in unfortunate manner, after a mix-up with Jemimah Rodrigues led to a run out in the 75th over. She walked back with 205 off 197, with 23 fours and eight sixes next to her name.

Watch Shafali smash back-to-back sixes on her way to a double ton:

Watch full highlights of Shafali's double century here: