My son was 16 years and 4 months old when a case was filed against him on May 23, 2011. He’s 20 now. Can the case be heard in a regular court, or does it have to go to a Juvenile Court?

Based on the information provided, the case would likely be heard in a regular court. As your son was 16 years and 4 months old at the time of the case filing, he would be considered an adult under Indian law, meaning the case would not fall under the jurisdiction of the Juvenile Justice (Care and Protection of Children) Act.