With Russian President Vladimir Putin sitting next to him at the St. Petersburg International Economic Forum (SPIEF) on Friday, Modi emphasised that the world should move beyond the "good terrorism, bad terrorism" debate and block funding, weapons and communication modes of terrorists.
Modi also pushed for early decision on the Comprehensive Convention on International Terrorism (CCIT), a resolution pending before the United Nations for the last 40 years.
Joining Modi, Putin said India was facing a serious problem on account of terrorism and it was not an "imaginary thing".
During a question-answer session after addressing the SPIEF, Modi said, "terrorists don't manufacture weapons, but some countries supply guns to them; terrorists don't print currency, but some countries facilitate their financing through money laundering; terrorists don't own telecommunications system and social media networks, but some countries help them with that."
Although the Prime Minister did not name any country, the reference was clearly to Pakistan which India says has been indulging in all these activities in Kashmir.
"The call of time is that we should rise above specific incidents. Terrorism is the enemy of humankind. All should come together to fight terrorism," he said.
Noting that the UN Secretary General Antonio Guterres was present in the gathering, Modi lamented that for 40 years, the CCIT resolution has been pending before the United Nations regarding definition of terrorism and of those who help terrorists.
"Only lip service has been provided. There has been no discussion, nor any decision," he said.
The Prime Minister said he was glad that Putin had on Thursday publicly stated that the resolution would be discussed.
"Now we should come out of good terrorism, bad terrorism (debate); my terrorist, your terrorist (syndrome). It is an issue of humankind. That's how we can fight terrorism," Modi said. India, he said, has been a victim of cross-border terrorism for 40 years and thousands of innocent citizens have been killed but the world recognized terrorism merely as a law and order problem for many years.