A 54-year-old Indian American man is facing a US government lawsuit that could strip him of his citizenship, after authorities say he used false identity and concealed his immigration history to obtain permanent residence and later naturalization.A civil denaturalization complaint was filed against Jaswinder Singh, also known as Balwinder Singh, accusing him of illegally obtaining US citizenship through misrepresentation and identity fraud.According to court documents, Singh first applied for immigration benefits in August 1990 under the name Balwinder Singh. His application was denied in November that year, and an immigration judge ordered him deported from the US. After exhausting all his appeals, he was directed to surrender in 1993 but failed to do so.Singh later re-entered the immigration system using a different identity. In 1994, he submitted a new application in the name of Jaswinder Singh, giving a different date of birth and a different account of his entry into the US. He did not disclose his prior deportation orders and immigration proceedings.An immigration judge approved his second application in 2003, granting him permanent residence after Singh said the information he provided was correct.Singh later applied for US citizenship. He signed his naturalization application under penalty of perjury, confirming that all information submitted was accurate, and his application was approved by US Citizenship and Immigration Services in June 2013.“The complaint accuses Singh of illegally procuring naturalization because he was not lawfully admitted for permanent resident status and because he committed perjury at his naturalization interview. The complaint also alleges that Singh obtained citizenship by concealing material facts or by making deliberate misrepresentations. The Immigration and Nationality Act requires the U.S. District Court to revoke Singh’s naturalization if it finds him liable on any of the charges.“Singh was not legally eligible for citizenship because his permanent residence was obtained through false statements. He misled the authorities during his naturalization process.Under US law, citizenship can be revoked if it is found to have been obtained illegally or through deliberate misrepresentation of material facts.The case was investigated by the U.S. Citizenship and Immigration Services (USCIS) under the Department of Homeland Security (DHS).