Jipmer prospetus or information brochure confirms the attainment of negetive marking scheme from the year 2018. 

Yes. You are correct. Jipmer has made some changes in the marking scheme which is as :-
+4 for marking Correct Response 
-1 for marking Incorrect Response
0 marks for unattempted question.

For more info reagrding the exam details please visithttps://medicine.careers360.com/articles/jipmer-mbbs-exam-pattern?amp

Preapre well for exam. Best of luck !

As per the exam pattern of JIPMER 2018, the candidate will be allotted four marks for every correct response, while for the first time, one mark will be deducted for incorrect answers. You can check the complete information of JIPMER Exam pattern with the given below link.

JIPMER Exam pattern 2018

Good Luck!