However, he conceded that Pakistan itself has also been a victim of terrorism and lost over 50,000 people.
In what is seen as a clever balancing act, while pitching for strong action by Pakistan against terror outfits, Kerry said when Islamabad takes action there is usually "pretty intense pushback and blowback which makes it harder".
Addressing a session at IIT-Delhi here, he said terror groups like Daesh, Al Qaeda, LeT and JeM cannot be fought by a single nation.
"It is clear that Pakistan has work to do in order to push harder against its indigenous groups that are engaged in terrorist activities. They must work with us to help clear sanctuary of bad actors who are affecting not only India- Pakistan relationship but also our ability to achieve peace and stability in Afghanistan," Kerry said.
Also Read
"More than 50,000 people have been killed... People define a great religion Islam in a way that doesn't reflect that religion. They steal it, hijack it. When Pakistan do take action there's usually pretty intense pushback and blowback which makes (tackling terror) it harder," he said.
The Secretary of State said leading nations can no longer ignore threats beyond its borders.
"There have been communication (between India and Pak). That's the way to begin the process," he said.
Praising his host country, Kerry said a rising India will play a critical role in resolving challenges posed by poverty and terrorism.
Underlining the importance of ties with India, he said the US is India's biggest trade market now.
Disclaimer: No Business Standard Journalist was involved in creation of this content