Welcome to ISC! Please submit this query in our Ask Expert section 's category of Indian Education Consultants for detailed guidance. I suggest that, when posting the query there, you could mention which field you have graduated in and what are your interests for which you are keen on doing a short-term course. This would enable ISC members to guide you better.
When people come at you with their worst, you should come at them with your best (advice given to Selena Gomez by her mother, quoted in Time magazine.)