Which amendment of the constitution is related to reorganization of states on a linguistic basis?

Which of the following is not a part of UNESCO World Network of Biosphere Reserves?

With reference to the inscriptions of Asoka, consider the following statements:

1. They used different scripts in different geographical locations
2. They used different languages in different geographical locations

Which among the above observations is/ are correct?

Consider the following technologies:

1. SARATHI
2. Sarvekshak
3. Varunastra

Which of the above is/are patrol vessel(s)?

Consider the following projects:

1. SANKALP
2. STRIVE
3. PRASAD

Which of the above has/have been launched by the Tourism Ministry?