It depends on the degree of variations in the documents. In case it is only a minor variation like in the case of 's' and 'sh', then it may not matter much. It depends up to a large extent on the attitude of the document variation official also. However, it is advisable to take all the original documents to a lawyer and consult him. In case so advised, a notarized affidavit may be got prepared, but the dame should be produced to the official only when asked for the same, instead of showing the same voluntary without asking.