As per my searching I was founded that there is facility for one sitting course in Karnataka State Open University.

A single sitting degree is a program in India that allows students to condense a three-year bachelor's/Post Graduate degree program into one year/6 months of study.

At the end of the course of study, the student completes exit exams in a single sitting – hence the term single sitting degree.

While at one time single sitting degrees were a recognized educational offering in India, the single sitting degree has since been discontinued.

Fees detail:

BA,BCOM,BBA,BSC,MA,MCOM,MSC COURSE FEE:9000
BCA COURSE FEE:21500
MBA COURSE FEE:35000

One Year Sitting Degree Programme is available on Cheapest course Fee with Easy installment Facility

One Year Sitting Degree Programme is Pass Assured with Good Percentage

One Year Sitting Degree Programme Valid for Higher Education and Govt. & Private Sector Jobs

Some other institutes for one sitting degree:

Karnataka State Open University

Bharathiyar University

Madras University

Periyar University

Manonmaniam Sundaranar University

CMJ University

MG University