Explanation:

- Raptakos Brett and Co. Ltd. vs. Ganesh Property:

This case dealt with the bar on suits by unregistered partnership firms. The Supreme Court clarified that an unregistered firm cannot enforce a right arising from a contract.

- DDA vs. Kochar Construction Work and Anr:

This case discussed whether an unregistered partnership firm can claim legal remedies. It reinforced the importance of registration for enforceability of contract-based rights.

- Haldiram Bhujiawala and Anr vs. Anand Kumar Deepak Kumar and anr:

Here, the Supreme Court examined the repercussions of non-registration. It confirmed that unregistered firms have limited rights regarding enforcing contracts.

- All of the above

All these cases relate to the effects of not registering a partnership firm under the Partnership Act.

Correct Answer: Option 4 - All of the above