Statutory Variation in taxes and duties, or fresh imposition of taxes and duties by state/central governments in respect of the items stipulated in the contract (and not the raw materials thereof), within the original delivery period stipulated in the contract, or last unconditionally extended delivery period shall be to Railway's account. Only such variation shall be admissible which takes place after the submission of bid. No claim on account of statutory variation in respect of existing tax/duty will be accepted unless the tenderer has clearly indicated in his offer the rate of tax/duty considered in his quoted rate. No claim on account of statutory variation shall be admissible on account of misclassification by the supplier/contractor. Statutory Variation Clause is applicable in all statutory levies such as duties, taxes etc. during the original currency of contract subject to production of documentary evidence.