राजशाही को समाप्त करने के बाद नेपाल औपचारिक रूप से किस वर्ष एक संघीय लोकतांत्रिक गणराज्य बना?

In which year was the Farakka Treaty signed between India and Bangladesh for sharing Ganga waters?

Consider the following statements regarding Nepal's transition to democracy: (I) Nepal was a constitutional monarchy where the monarch traditionally retained strong executive control. (II) The Maoist movement in Nepal engaged in armed struggle against the monarchy. (III) In April 2006, widespread pro-democracy protests led to the restoration of Parliament. (IV) The pro-democracy movement was supported by the Seven Party Alliance (SPA) and Maoist groups. Which of the statements given above are correct?