Chennai is a city where there is no dearth of good short term courses which can be very useful in getting the best possible job. If you have a liking for both marketing as well as IT then there is one course which is perfect and that is digital marketing. If finance is what you find interesting think about courses like finance modelling.
In the case of people who would like to pursue business management can opt for courses like post graduate diploma in management. Those who are budding accountants can check out courses like Business accounting and taxation. There are also certificate courses in finance and accounts. If you have a liking for the hospitality industry then you may opt for post-graduate diploma in hotel management. Mobile app development is also one field which has a wide scope. One can therefore, even think about pursuing mobile app development courses.