The Adamawa Election Petition Tribunal sitting in Yola says it has received 19 petitions.
The Secretary of the tribunal, Mr Godwin Ezenwa, made this known to the News Agency of Nigeria (NAN) on Saturday in Yola.
Ezenwa said the petitions comprised of two for Senate, seven for House of Representatives, and 10 for House of Assembly.
Ezenwa said the tribunal would have its inaugural sitting on Monday, April 8.