A Karta can alienate the Joint Family property for:

Under Mitakshara law, as explained by the Privy Council in Hunoomanpersaud Panday v. Mussumat Babooee Munraj Koonweree (1856), a karta may alienate joint family property for legal necessity or benefit of the estate. The texts group these as "apatkale" (distress or danger to the family), "kutumbarthe" (the needs or benefit of the family) and "dharmarthe" (indispensable religious and charitable duties), so each of the three heads justifies alienation.