Consider the following statements regarding National Technology Day: 1. It is observed annually on May 11th to commemorate the successful Pokhran-II nuclear tests of 1998. 2. The Pokhran-II tests, codenamed 'Operation Shakti', involved five nuclear tests of advanced weapon designs conducted in Rajasthan. 3. On the same day in 1998, the first indigenous aircraft 'Hansa-3' successfully completed its flight. Which of the above statements are correct?