Bailable or non bailable

Three contractors manipulated or forged commercial tax dept documents and submitted to BDO who is tendering authority. Thus they cheated or evaded VAT several lakhs. On primafacie DCB initially filed FIR last week u/s 420 468 470 etc. This is based on CT dept complaint. Further Investigation is under process through Audit dept. to find how much totally so far they have forged and evaded of TAX value. Pl tell Whether this sections are bailable or non bailable. In audit they find nearly 30 lakhs evaded. But still they have to submit final reply to Police. Then only know the total evaded tax and number of forged documents.