Md. Zafir Ahmad works as an Assistant Metrologist for Electro Meter Corporation in Kolkata, India. He requires a visa to travel to Bangladesh to provide calibration services to SGS Bangladesh Ltd, one of Electro Meter Corporation's customers. P. Das, the Head of HRD at Electro Meter Corporation, writes a letter certifying Md. Zafir Ahmad's employment and requesting that he be granted a visa. Additionally, Md. Zafir Ahmad authorizes Mr. Indrajit Mondal to carry documents and assist with the visa process on his behalf.