The dual degree exchange program means spending 2 terms abroad. This program has only 10 seats and the criteria for selection is solely performance in the first year at IIMA. You will get a Master in Management degree from your exchange university. But you will have to complete a Master's thesis at the exchange university as a requirement for the degree.
Because of its firmness, this degree is not opted by many students. One of my friends did opt for this degree from EBS and she shared her experience of how she managed to get 2 degrees simultaneously.
Firstly, the course curriculum at EBS ends in June. Then she had to write her thesis and submit it by November. But her job in India was to start in May so she requested to complete the thesis alongside the curriculum. Her request was accepted. She completed her thesis by April and returned back to her job in India.
She was the first person to graduate in her Masters batch at EBS. This degree helped her get a good deal of exposure to academic culture in Europe.