Hey ppl I need some suggestions:  My visa expired back in 2011. I want to go Nepal this winter to renew my visa. I am doing my PhD here in US and in good academic condition.  I was told by my immigration advisor that they run background check which might be a lengthy process. But since I am just going for 4 weeks, will it be enough to get a visa interview and background checked within that time frame.  Please share your experience.  Thanks