19. We may note that in a recent judgment of this Court, in R. Srinivas Kumar v. R. Shametha, to which one of us (Sanjay Kishan Kaul, J.) is a party, divorce was granted on the ground of irretrievable breakdown of marriage, after examining various judicial pronouncements. It has been noted that such powers are exercised not in routine, but in rare cases, in view of the absence of legislation in this behalf, where it is found that a marriage is totally unworkable, emotionally dead, beyond salvage and has broken down irretrievably. That was a case where parties had been living apart for the last twenty-two (22) years and a re-union was found to be impossible. We are conscious of the fact that this Court has also extended caution from time to time on this aspect, apart from noticing (2019) 9 SCC 409 that it is only this Court which can do so, in exercise of its powers under Article 142 of the Constitution of India. If parties agree, they can always go back to the trial court for a motion by mutual consent, or this Court has exercised jurisdiction at times to put the matter at rest quickly. But that has not been the only circumstance in which a decree of divorce has been granted by this Court. In numerous cases, where a marriage is found to be a dead letter, the Court has exercised its extraordinary power under Article 142 of the Constitution of India to bring an end to it.