Seventeen-year-old Prithvi Shaw showed maturity beyond years, anchoring a fabulous fourth innings chase with a debut hundred, as Mumbai beat Tamil Nadu by six wickets to enter the Ranji Trophy final for the 46th time. Mumbai will meet Gujarat in the final scheduled to be played at Indore from January 10-14. Straightaway drafted from the India U-19 team, young Shaw scored 120 as Mumbai chased down 251 in only 62.1 overs.