Mayne's Hindu law, 11th Edn., thus at p. 569:
“As the presumption is in favour of union until a partition is made out, so after a partition the presumption would be against a reunion. To establish it, it is necessary to show, not only that the parties already divided, lived or traded together, but that they did so with the intention of thereby altering their status and of forming a joint estate with all its usual incidents. It requires very cogent evidence to satisfy the burden of establishing that by agreement between them, the divided members of a joint Hindu family have succeeded in so altering their status as to bring themselves within all the rights and obligations that follow from the fresh formation of a joint undivided Hindu family.”