I work with a large IT firm and I am going for stamping in Mumbai consulate. Mine is a EC model. My client is not providing a client letter. But there is a SOW in place which I can take and is valid it 2015. There are atleast 20 people who went to stamping from my project without the client letter but with SOW and have got their visa stamp. But still I am confused. Shall I go for stamping or change my client? What else i can ask from client to make my case strong?