Telemarketing involves companies connecting with potential customers via telephone calls. The job prospects for telemarketing include both full-time and part-time positions that can be done remotely, with duties including promoting sales, conducting surveys, and providing customer service. The average salary for a marketing executive is Rs 243,970 per year, while a business development manager earns around Rs 582,211 annually. Formal education in telemarketing can be obtained from institutions like Kakatiya University and Aditya PU College.