Nachappa was elected as one of the four vice-presidents for a three-year term. The other three vice-presidents are Uday K Prabhu, Sunil Kumar Shety and A Munisanjeevappa.
Karnataka Pradesh Congress Committee chief G Parameshwara was elected unanimously as KAA President, while Chandrashekar Rai was made the Secretary. H R Udaya Kumar will be the treasurer of the association.
Para-athlete H N Girisha, who won a silver in the London Paralympic Games last year, was also named as one of the Executive Committee members.
Welcoming Nachappa's election as KAA vice-president, CSI Convenor B V P Rao said, "I hope other former sportspersons would emulate Nachappa and become administrators to clean up sports bodies in the country.
"Nachappa has worked at the grassroot level as she was the head of Bangalore Urban District Association. I hope she would go ahead further and in near future would take up important positions in Athletics Federation of India," he said.