Bipin Chander Vs Prabhawati AIR 1957 SC 176

HMA-section 13- divorce- ground of desertion - For the offence of desertion, so far as the deserting spouse is concerned, two essential conditions must be there, namely (1) the factum of separation, and (2) the intention to bring cohabitation permanently to an end (animus deserendi). Similarly two elements are essential so far as the deserted spouse is concerned: (1) the absence of consent, and (2) absence of conduct giving reasonable cause to the spouse leaving the matrimonial home to form the necessary intention aforesaid. The petitioner for divorce bears the burden of proving those elements in the two spouses respectively....
Desertion is a matter of inference to be drawn from the facts and circumstances of each case. The inference may be drawn from certain facts which may not in another case be capable of leading to the same inference; that is to say, the facts have to be viewed as to the purpose which is revealed by those acts or by conduct and expression of intention, both anterior and subsequent to the actual acts of separation. If, in fact, there has been a separation the essential question always is whether that act could be attributable to an animus deserendi. The offence of desertion commences when the fact of separation and the animus deserendi co-exist. But it is not necessary that they should commence at the same time. The de facto separation may have commenced without the necessary animus deserendi coincide in point of time..