India is one of the biggest providers of developmental assistance to war-torn Afghanistan. The amendment seeks increasing India's role in assisting the Afghan security forces through logistics support, threat analysis, intelligence, materiel, and maintenance support.
The amendment - if passed by the Senate and implemented by the US and India - could irk Pakistan as it opposes any Indian role in neighbouring Afghanistan. The amendment was moved on Thursday by senators Dan Sullivan, Gary Peters, John Cornyn and Mark Warner.
Mr Warner is the vice chair of the powerful Senate Select Committee on Intelligence, while Mr Cornyn is the Senate Majority Whip for the Republican Party. They are also the co-chairs of the Senate India Caucus.
The amendment asks Defence Secretary Jim Mattis and Secretary of State Rex Tillerson to identify ways in which India can take "security and development related steps" in Afghanistan. It asks the Pentagon and the State Department to find ways in which India can support "targeted infrastructure development" and economic investment in Afghanistan.
"Improve the provision by India of humanitarian and disaster relief assistance to Afghanistan, including through the provision of logistics support by India, joint training between Afghanistan and India, and combined military planning by Afghanistan and India for humanitarian assistance and disaster relief missions in Afghanistan," the amendment says.
Calling for a trilateral security and civilian co-operation between India, Afghanistan and the US, it seeks establishment of priorities for investments to promote security and stability in Afghanistan that align with the "mutual interests" of Afghanistan, India, and the US.
It also calls for identifying gaps in the capabilities of Afghanistan security forces, and determine means of addressing such gaps; and identifying economic and infrastructure development opportunities in Afghanistan related to improving security and stability in Afghanistan. The Senate is yet to vote on the NDAA, 2018.