Abuja was declared new federsl capitsl in the year

I think there may be a mistake here!

Abuja was not declared a new federal capital in the year. In fact, Abuja has been the capital of Nigeria since December 1991, when it was officially declared the new capital of the country.

Prior to that, Lagos was the capital of Nigeria, but due to its overcrowding and congestion, the government decided to move the capital to a more central location. Abuja was chosen as the new capital and was designed and built specifically for that purpose.

So, to answer your question, Abuja was not declared a new federal capital in any particular year, as it has been the capital of Nigeria since 1991.