I and my parents will apply for US citizenship in April 2013. On an average it takes about 4-5 months to get US Citizenship if we pass all Citizenship exams.After that we can apply for US passport which is about 1 month worth process. But my parents indian passport expires in september 2013.So the questions are:1)Do parents need to have valid Indian passport during the US citizenship process? 2)What if their passport is expired prior to issuance of US passport? Could this be a problem?3) If it is mandatory to have a valid Indian passport during US citizenship process should we renew parents passport before apply for their citizenships? How about we renew their Indian passports while the US citizenship is under process?4)What is the process to renew Indian Passport in US?