In a joint Hindu family business, the karta takes an important decision to invest in a new venture without consulting the other members. How does this reflect the karta's role and authority in this type of business?

This situation clearly reflects the supreme role and authority of the karta in a joint Hindu family business:

1. Sole Manager and Controller — The management of a joint Hindu family business is rested in the karta. The karta has complete control over the family business, and no other member of the family can interfere in their management.

2. Authority to Take Quick Decisions — The karta alone is authorised to take all important decisions of the family business. They need not consult other members, and their decision is final and cannot be challenged.

3. Freedom of Action — The karta enjoys freedom of action because the management is centralised in the hands of the eldest and most experienced member.

4. Responsibility with Risk — While the karta has the authority to take such decisions, they also bear unlimited liability for the consequences. If the new venture fails, the karta's personal property can be used to clear the debts.

Hence, the karta acts both as the supreme decision-maker and the protector of the family business.