Mumbai rode on unbeaten centuries from Akhil Herwadkar and Suryakumar Yadav to pile up 370 for 2 on day one of their Group B Ranji Trophy game against Gujarat at the Wankhede Stadium on Tuesday.

Gujarat's hopes of securing at least the first innings lead to enhance their hopes of advancing to the quarters took a beating as the hosts, surprisingly asked to bat first by visiting team captain Parthiv Patel, scored at more than four an over to grab the advantage.