The judgment of the Constitution Bench in the case of State of Punjab & Anr. (supra) does not come to rescue of the respondents wherein, validity of levy of tax on import of potable liquor manufactured in other States was under challenge. It was held that conduct of the respondent licensees in an attempt to wriggle out of his contractual obligations cannot be countenanced having fully exploited the advantage flowing from the contract to the exclusion of the others and having reaped rich commercial benefits from that activity by challenging, inter alia, any particular condition of that contract/licence. However, these observations were made as the levy of import tax was contemplated under the terms of the contract; whereas, in the present cases, the facts are not identical. As already held, the terms of the agreement executed between the parties did not entitle the State Government to unilaterally extend its term after expiry by efflux of time that too with new terms and conditions onerous to the licence holders.