The United States Embassy deny visa applications for a various of reasons based on their own finding and the documents submitted from the visa applicant. US consular officers are charged with reviewing relevant documents, investigate the person's background, and conduct a personal interview to evaluate whether that individual is eligible for the visa.
When an immigrant visa is denied the applicant is issued a 221(g) or "blue sheet" indicating the evidence submitted was insufficient. Visa denial is basically due to the requirements of the United States Immigration and Nationality Act (INA) Section 214(b), wherein the applicant did not have meaningful evidence of strong ties to a residence abroad to compel the applicant to return home after the visit. Administrative processing is sometimes equivalent to a 221(g) refusal as the consular officer was unable to approve the case based on the evidence submitted, or a discrepancy was discovered requiring additional time to investigate. Administrative processing and 221(g) cases may languish in visa purgatory until the visa expires or until qualitative evidence is submitted by the visa applicant.
There could be several reasons for a visa refusal or denial. In case the consulate refuses your visa, you should get a form with a refusal clause/reason.
Other then the submitted documents, it is up to consular officers at U.S. embassies and consulates to determine eligibility on an individual basis on the merits of each case.
Most of the cases refusal for H1 visa (221g) can be just because of any documents missing or any additional information required by the consulate.
Applicants are ineligible under section 221(g) because the applicant failed to bring some information or document, or some further procedure or review by the consulate office or another U.S. government agency must be completed. During the interview the consular will advice you on further steps to getting together the correct documents. Call or visit your nearest US consulate to find out more.
Follow the instructions for a 221(g) refusal form and provide as per the instructions.
In addition to just the missing documents, another reason could be that the officer/consulate wants to verify your case specifics with concerned authorities before making the decision and such cases can be put under "Administrative Processing".
If you have been requested to wait until the Consulate contacts you, please do not make an appointment. Your case requires further administrative processing and the Consulate will contact you once this has been completed.
