The King of Nepal accepted the demand for a new democratic constitution in 1990. This was a significant event in the history of Nepal as it marked the end of the absolute monarchy and the beginning of a democratic era.

Background:
Nepal had been ruled by the Shah dynasty since the 18th century, with the king as the head of state and government. The country was governed under the Panchayat system, which was a one-party system with no political parties allowed. The King had absolute power and there was no scope for democracy or political freedom.

Demand for a new constitution:
In the 1980s, there was growing demand for political reform and the establishment of a democratic system. The pro-democracy movement gained momentum and there were protests and demonstrations across the country. The political parties, civil society groups, and student organizations demanded a new constitution that would guarantee fundamental rights and freedoms, separation of powers, and the rule of law.

The King's response:
In 1990, the King finally responded to the demand for political reform. He agreed to establish a Constitutional Assembly to draft a new democratic constitution. He also lifted the ban on political parties and released political prisoners. The new constitution would establish a multiparty democracy, with the King as a constitutional monarch with limited powers.

Impact:
The acceptance of the demand for a new democratic constitution was a significant turning point in Nepal's history. It paved the way for the establishment of a democratic system and the protection of fundamental rights and freedoms. The political parties were able to participate in the electoral process and the people were able to exercise their right to vote. However, Nepal's journey towards democracy has been fraught with challenges and there have been periods of political instability and unrest. Nevertheless, the acceptance of the demand for a new democratic constitution in 1990 remains a landmark event in Nepal's history.