In reply, the Sunrisers lost opening batsman Alex Hales in just the second over, bringing Williamson to the crease.
He even reached the 50-run markers together with his signature struck, a six over mid wicket off Shakib.
Thanks to Pant, Delhi amassed 135 runs in the last 10 overs.
By the end of the fourteenth over, the visitors crossed 150 runs only to make matters worse for Delhi.
Dhawan and Williamson were in blistering form as they toyed with hapless bowling of Delhi. While pacers Bhuvneshwar Kumar and Sandeep Sharma have scalped 7 wickets each in 6 matches for the former champions.
Shakib Al Hasan proved to be the pick of the Sunrisers bowlers with figures of 2 for 27 from his four overs.
Ahead of wedding, Sonam Kapoor-Anand Ahuja visit a clinic
Afterwards, she will begin her capturing program and will also find chaotic with Veere Di wedding ceremony promotions. Subsequent to the wedding, Sonam and Anand will distance among Mumbai, Delhi (his hometown) and also London.
Delhi Daredevils: Prithvi Shaw, Jason Roy, Shreyas Iyer (capt), Rishabh Pant (wk), Glenn Maxwell, Vijay Shankar, Liam Plunkett, Harshal Patel, Shahbaz Nadeem, Amit Mishra, Trent Boult. Rishabh Pant lit up the Delhi night-sky with some incredible hitting, but was clearly not enough to keep his team afloat.
But the next over changed that. He is now the owner of the Orange Cap, with a total of 521 runs at a strike rate of 179.65.
67 Pant's runs off 23 balls in the death overs - the second highest by any batsman in an IPL innings. Pant has also completed his 1,000 runs in the IPL. Out of the 11 times that these two teams have faced each other, Sunrisers hold an edge having won on seven occasions as compared to Delhi's four victories.
The Kiwi batsman has scored 410 runs so far, with five fifties to his name.
A partnership was building up between Harshal and Pant. But all his efforts went in vain as the bowlers couldn't defend the total on a track where three batsmen played some cricket of high quality. Which he did by smashing Bhuvneshwar. Delhi Daredevils chose to bat first after winning the toss in the Ferozshah Kotla Stadium in Delhi, thanks to Rishabh Pant's 128, they scored 187 runs in 20 overs and set 188 for Sunrisers Hyderabad.
IPL 2018 mid-season analysis - Can the resurgent MS Dhoni lead Chennai Super Kings to IPL title?
Unfortunately, the Delhi Daredevils made a decision to follow the Royal Challengers Bangalore and are now at the bottom of the table.