brother, doesn't necessarily has to be a home country to stamp h1 visa . you can do anywhere in the US consulate outside US . people prefer to go Canada to stamp h1b but canada is already booked for 4 months . these days people go Mexico specially Indian Chinese because they cant get appointment in their country for 6 months . you can simply drive to Mexico if that's feasible .

so many employees, due to security reasons cannot simply go back to their home country to get stamped . I think US embassies are aware of this fact so they try to help you as much as they can . but if you have long vacation its better to go nepal, meet friends and families . the output of your visa outcome will be the same no matter nepal or any other embassies . but people say the processing time will definitely be faster in Mexico because you will explain them you are tourist there and you have to return US Asap

mexico is cheap compared to canada but one real problem is you cannot pay the visa fee ( i thik DS 160 or something ) from US . you have to pay in local currency and agent will do that but they charge 100 dollars each but for canada i think we can pay from the US