AHMEDABAD: Soon after a course on carbon credits was launched in the most premium management institute of the country, Indian Institute of Management, Ahmedabad (IIM-A ) is exploring options of earning some carbon credits for itself. Akshat Khare - an alumnus of IIM-A from the 2007 batch and was among the six students who had ventured on their own - is helping the institute explore the option of using solar energy to illuminate the campus.