Explanation:

- Statement 1: Incorrect. The election of the Speaker of Lok Sabha is not conducted by the Election Commission of India. It is conducted by the members of Lok Sabha themselves.

- Statement 2: Correct. The Speaker, upon election, is not obligated to make or subscribe to an oath or affirmation as required by other members.

- Statement 3: Incorrect. The Speaker does exercise a casting vote in the case of equality of votes to break the tie.

- Option 1 (2 only): Correct. Only statement 2 is correct.

- Option 2 (2, 1 and 3): Incorrect. Only statement 2 is correct.

- Option 3 (3, 1 only): Incorrect. Neither statement 1 nor 3 is correct.

- Option 4 (2 and 3): Incorrect. Only statement 2 is correct.