Kodnani was sentenced to 28 years of imprisonment.
A division bench of the court comprising justice Harsha Devani and justice A. S. Supehiya concluded the hearing and reserved the order in the case last August.
In 2012, a special court for Special Investigation Team (SIT) cases had sentenced 32 people to life imprisonment.
Apart from this, seven accused were given enhanced life imprisonment of 21 years and the remaining were given simple life imprisonment for 14 years.
All the convicts had appealed against their conviction in the High Court.
Around 58 people lost their lives when the S-6 coach of Sabarmati Express was allegedly torched at the Godhra Railway Station on February 27, 2002.