To be eligible for the BBA degree program at Sonda Degree College in Darjeeling, candidates must have completed their 10+2 education from a recognized board or university. They should have achieved a minimum aggregate of 50% marks in their qualifying examination. Additionally, candidates may need to clear an entrance exam conducted by the college or meet any other specific requirements set by the institution. Good communication skills, a strong academic background, and a passion for business and management are also desirable qualities for prospective BBA students at Sonda Degree College.