Hey you are the not the first one to go through this issue in recent days... I have heard about at least three such cases in Nepal this year and also have a colleague who had this issue in India. They are giving us hard time due to all those Indian Consultancies who issued H-1 visas without work. It is good that you have genuine work... You should not worry too much as this will be taken care of... first and foremost talk with Employer which I am sure you have already done and you need to get as much document, emails whatever from your employer stating that they need you... Another person who had same issue like you was in Nepal for more than two months, but after that he kept going to Embassy and kept calling them for answers and told them that he has to reach work at any cost or else company will have issues.. he was allowed to go after a week or so. So be proactive and keep knocking the embassy's door. You are legal so do not worry.