Here is a list of things India, Indians and the world can do to stop Pakistan and Pakistanis to fund terrorism.
No country should give a visa to Pakistanis.
Block all Pakistanis from fiverr
Block all Pakistanis from Upwork
Block all Pakistanis from using payment gateways
Block Pakistani exports
Block the IP range of Pakistan to block Pakistani web traffic
Ban Pakistan from cricket
Diplomatic
Financial
Technical
Cricket
Pakistani cricketers openly support Islamic terrorists organizations. The money given to Pakistan cricket board goes to Pakistani army and Muslim terrorists in Kashmir. These terrorists organizations are banned by UN.