The agency also seized over Rs 1 crore in cash and Rs 43,000 in Nepali currency and several incriminating documents from the arrested men.
This followed searches on Tuesday in the premises of Mohammad Salman, 52, Mohammad Salim aka Mama, 62, and Rajaram and Company in Old Delhi, an official said. Both men were arrested along with a hawala courier, Sajjad Abdul Wani, 34, of Srinagar.
According to the NIA, some Delhi-based individuals were receiving funds from FIF operatives based abroad and were using the money for terror activities in the country.
Salman was said to be in regular touch with a Dubai-based Pakistani national, who in turn was connected with the Deputy Chief of FIF, a charity group linked to the LeT.
“The accused have been receiving funds sent by FIF operators and associates, through hawala operators,” he said.
According to the NIA official, FIF is a Lahore-based organization established by Jamat-ud-Dawa and acts as a front for LeT.
FIF was founded in 1990 by Hafiz Mohammad Saeed, the mastermind of the 2008 Mumbai terror attack.