Based on the provided legal document, the key points are as follows:

1. The eviction grounds under Section 11(4)(iii) of the Kerala Building (Lease and Rent Control) Act, 1965, require that the tenant has acquired a building of their own or put up a building that is reasonably sufficient for their requirements. In this case, the court found no evidence of such acquisition or construction by the tenant (!) (!) .

2. The tenant's involvement in a partnership business or conducting a different business in another building does not constitute acquiring possession of a new building under Section 11(4)(iii). The evidence did not establish that the tenant had acquired or built a building reasonably sufficient for his needs (!) .

3. The primary evidence indicated that the tenant handed over the premises to his brother, who conducted business there as a sub-tenant. The court found this to be a case of sub-letting, which is a ground for eviction, especially when the tenant has no claim that the person occupying the premises is an employee, partner, or helper (!) (!) .

4. The landlord's initial burden of proof on sub-letting was discharged by showing that a third party was in exclusive possession of the premises. The tenant then failed to rebut this presumption and did not establish that the third party was a partner, employee, or helper, leading to the conclusion of sub-tenancy (!) (!) .

5. Damage to the building caused by rough and careless use, such as heavy vehicle movement, can constitute a material and permanent diminution of the building’s value and utility, justifying eviction under Section 11(4)(ii). The evidence supported that such damage had occurred, impacting the safety and utility of the premises (!) (!) .

6. The court emphasized that ordinary wear and tear does not justify eviction; only damage that materially and permanently diminishes the building’s value or utility is sufficient. The damage caused by heavy vehicles and the resulting cracks and structural issues were deemed to meet this criterion (!) .

7. The court partially allowed the revision petition, setting aside the eviction order under Section 11(4)(iii) due to lack of evidence of the tenant's acquisition of a suitable building. However, the eviction based on damage caused by careless use was upheld (!) (!) .

8. The court granted the tenant a period of two months to vacate the premises, conditioned upon the tenant filing an undertaking to vacate, depositing arrears of rent, and ensuring no further damage to the building. Failure to comply would lead to the execution of eviction proceedings (!) (!) .

These points summarize the court’s findings, the legal principles applied, and the directions given regarding the eviction process.