Would be simpler if you do another marriage with your spouse, thus legalising the marriage under uk law. Unfortunately it is not possible to do another marriage and lodge the visa application before 9/7, I am in the UK and my wife is abroad and already tied with work, let alone my country does not ...

Gregarious...you've misunderstood. His current marriage isn't considered legal in the UK , although it may well be in India. In other words, under UK law he isn't married. This is why the spouse visa application was refused. Therefore he needs to apply for a fiancee visa. I am in the same situation...