Extending her condolences to Siddaramaiah, Gandhi said that she and the entire Congress party stood with him and his family in this moment of loss.
Gandhi prayed for the peace of the departed soul and hoped that the almighty gives strength to the bereaved family.
"My heartfelt condolences to Siddaramaiahji on the passing away of his son. My thoughts & prayers are with his family in this time of grief," party vice president Rahul Gandhi tweeted.
Rakesh died of multi-organ failure at a hospital in Belgium today.