29-year-old Afghan national Rahmanullah Lakanwal was identified as the suspected gunman who shot the two National Guard members.
The training would be part of joint Indo-US exercises code-named Yudh Abhyas. The US contingent would comprise 40 personnel from the 25th infantry division and the National Guards.
The emergency in Washington DC will be effective from Monday till January 24.
A Capitol Police officer was killed and another injured after a man rammed his car into a security barrier outside the United States Capitol and then got out of the vehicle and lunged towards the officers with a knife, setting off a major security scare.