targets of hate-motived crime due to the "visible religious articles" they wear, including uncut hair that men, and some women wrap in a turban.
"While some hate crimes against Sikhs may result from the perpetrator mistaking the victim for a Muslim, it is clear that Sikhs have been the targets of bias for their own religious identity in many instances," they said.
Despite the Sikhs being frequently targeted, the hate crimes against the community continued to be inaccurately included in the "anti-Islamic" and "anti-other religion" categories on the Hate Crime Incident Report Form.
Without accurate, nuanced reporting of these crimes, it is more difficult for federal, State and local law enforcement to assess and respond to the particular threat that the Sikh community faces.
The Hindu-American community has also been impacted due to lack of accurate tracking process, the Senators said, adding the assaults on the community members have been reported in several parts of the country.
"One of these tragic assaults occurred just over a month ago, when Sunando Sen, a 46-year-old Hindu man, was killed after an assailant pushed him in front of an incoming subway train in Queens, New York.
"The suspect in the case allegedly told police that she targeted Sen because she hates Hindus and Muslims ever since 2001," they said.
In September of 2012, Durbin chaired a hearing in the Senate Judiciary Subcommittee on the Constitution, Civil Rights, and Human Rights examining hate crimes and the threat of domestic extremism.
Through an outpouring of written testimony submitted to the Subcommittee for the hearing, a diverse coalition of organisations and individuals agreed that a failure to adequately collect data on hate crimes against Sikh, Hindu and Arab Americans made it difficult to know the scope of attacks and to combat hate crimes against these communities.