hey,

i hope you are doing well

yes jawaharlal nehru architecture and fine arts univeristy , hyderabad do offer 1 year post graduate diploma course of interior design , admission to this course is done on the basis of merit , interview and work experience of student.

for more details kindly go through the link mentioned below

https://www.careers360.com/colleges/jawaharlal-nehru-architecture-and-fine-arts-university-school-of-planning-and-architecture-hyderabad/pg-diploma-in-interior-design-

hope this helps

good luck!