Explanation:

Article 87 of the Constitution provides for Special address by the President.

• At the commencement of the first session after each general election to the House of the People and at the commencement of the first session of each year the President shall address both Houses of Parliament assembled together and inform Parliament of the causes of its summons.
• Originally, the President was required to address each session of Parliament. Therefore, during the provisional Parliament in 1950, President Rajendra Prasad gave an address before every session. The First Amendment to the Constitution in 1951 changed this position and made the President’s address once a year.

Hence only statements 1&2 are correct.