N'Djamena - Chad's President Idriss Deby Itno, who has been in power since 1990, will run for a fifth term in office after being chosen Tuesday as his party's candidate.
"You have given me the immense honour of renewing in me your confidence by making me your candidate in the 2016 election," Deby told members of his ruling Patriotic Salvation Movement (MPS) party.
If he wins enough ballots in the voting set for April 10, Deby will extend his grip on power that began in 1990 when he overthrew former president Hissein Habre.
Deby, born in 1952, modified the constitution in 2004, scrapping its two-term limit on presidential tenure, and won the following elections by a huge majority.
Also Read: UN asks Chad for answers over CAR rebel leader visit
An oil-rich central African country with entrenched poverty, Chad is playing a pivotal role in the military campaign against the Nigerian Islamist group Boko Haram.
Candidates have from February 10 to 29 to file their bid. A runoff vote will be held on May 9 if no outright winner emerges from the first round in April.
Two opposition figures, Kassire Coumakoye and Malloum Yobode, have already declared they will run.
On Tuesday, Deby announced he intended to restore term limits, saying they provide "vitality to our young democracy."
"We must limit terms, we must not concentrate on a system in which a change in power becomes difficult," he added.