Infact we have Indian Independence day Parade this Sunday in NYC. It happens along Madison Avenue in Manhattan.
The entire avenue (main street) will be closed for traffic and will be patrolled by NYPD.
Usually a celebrity will be invited to inaugurate instead of a politician. This time it is Vidya Balan who is inaugurating the parade and Anna Hazare rang the opening bell at NASDAQ to mark the Indian Independence day. Usually NASDAQ will display the Indian Flag on the big screen in their Times Square Office.
Something like this (Disclaimer : this picture was not shot by me and from 2012)