Thank you very much Vinny. My child is 10 months old and he does not have a passport. Is it enough to submit his birth certificate or we need to submit another ID (travel document issued by my embassy for example)? Many thanks in advance.

Many thanks for every one on this very helpful forum. I am in a similar situation. I got my ILR but I did not include my child in my ILR application. I need to apply to register my child as a British citizen. I need to know which form i should use especially my child visa is expired now. Any help ...