Gowtham quickfire 33 not out off 11 deliveries and Jofra Archer dominates on IPL debut to help Rajasthan to nail-biting victory.
Ambati Rayudu and Deepak Chahar starred as Chennai beat Sunrisers by four runs for their fourth win in IPL 2018.
AB de Villiers slammed an unbeaten 90 as RCB beat DD six wickets.
Chasing 192, Gayle (62*) and Rahul (60) had taken KXIP to 96/0 in just 8.2 overs when rain interrupted the proceedings.
Shane Watson (106) ton helps Chennai Super Kings register comprehensive win over Rajasthan Royals on Friday.
The opener smashed his sixth IPL hundred and 21st overall in T20s to lead Kings XI Punjab to 193 for 3.
After the spinners tied down Rajasthan to 160, Rana and Karthik combined together for the second time to complete a successful chase.
The win helped them stall a three-game losing streak, while Royal Challengers succumbed to their third loss in four games.
Delhi Daredevils were bowled out for 129 in 14.2 overs in a chase of 201 at Eden Gardens on Monday.
Kings XI Punjab defeated the Chennai Super Kings by four-run in IPL match in Mohali stadium on Sunday night.