"The importance of this issue to the Indian-American community is underscored by the fact that the government of India issued a statement supporting the effort. As you know, our NATO allies already permit Sikhs to serve," the letter said, which was signed by Shekhar Narasimhan, Ranvir Trehan, Shefali Razdan Duggal, Rajeev Sharma, Parag and Usha Saxena, Reshma Saujani, Frank Ismail, Raj Goyle, Anju Bhargava.