Bengaluru, February 29: Anustup Majumdar struck an unbeaten century to once again become Bengal's saviour after a familiar top order collapse as he single-handedly took his side to 275 for nine on the opening day of their Ranji Trophy semifinal against a star-studded Karnataka at the Eden Gardens in Kolkata.

Fresh from his career-best 157 from a similar position in the quarterfinals, Majumdar slammed an unbeaten 120 (173 balls; 18x4, 1x6) to revive Bengal innings after they were asked to bat first.

The home side are making a bid to reach the final after 13 years.

Electing to bowl, Karnataka ran through the Bengal top order as Abhimanyu Mithun, Ronit More, K Gowtham and M Prasidh Krishna shared the spoils before Majumdar came to the hosts' rescue.

The first day's play also saw the first dismissal via DRS in domestic cricket when Karnataka pace spearhead Abhimanyu Mithun got the wicket of Abhishek Raman (0) in the 16th delivery of the innings.

The DRS was used for the first time in India's domestic circuit in the two ongoing Ranji semifinals, but only with limited options as there was no HawkEye, Snickometer or UltraEdge.

Seesaw battle in Rajkot

The second semifinal at Rajkot saw a seesaw battle battle between the Parthiv Patel-led Gujarat and Jaydev Unadkat's Saurashtra.

Saurashtra, who were put into bat, crawled to 217 for five at stumps.

READ📰: Gujarat-Saurashtra’s seesaw battle and Bengal’s Anustup Majumdar’s recovery act against Karnataka highlight Day 1.

Here's a summary of all the action from the opening day of the @paytm #RanjiTrophy semifinal.

LINK 👇👇https://t.co/FkDiGgTwzt #GUJvSAU #BENvKAR pic.twitter.com/AyAgrcMu90
— BCCI Domestic (@BCCIdomestic) February 29, 2020