Directions: Study the following information and answer the question given below: In a State Public Service Commission, eight exams were conducted for the post of Forest Officer, College Lecturer, Assistant Statistical Officer, Agriculture Officer, Pharmacist, I Grade Teacher, II Grade Teacher, III Grade Teacher on the 15th and 20th of January, February, March, and April but not necessarily in the same order. Eight persons Rajat, Rajesh, Ram, Raman, Ranjan, Ratan, Ritesh, and Rishi were the incharge of these eight exams but not necessarily in the same order.

Ratan was the incharge of the Agriculture Officer exam and four exams were scheduled after the Agricultural Officer exam. Two exams were scheduled between exams under the charge of Ratan and Rajat. Rishi was the incharge of the exam scheduled on the 20th of a month, but after the exam under the charge of Ratan. The exam for the post of Forest Officer was scheduled on the 15th of March. III Grade Teacher exam was conducted immediately before II Grade Teacher exam. The Assistant Statistical Officer exam was under the charge of Rishi but was not conducted immediately after the Forest Officer exam. Ritesh was the incharge of the College Lecturer exam and was scheduled in the month of April. Rajat was neither the incharge of III Grade Teacher nor I Grade Teacher. Ranjan was the incharge of the exam scheduled on the 20th of the month but after II Grade teacher exam. Rajesh was the incharge of an exam conducted after the Agriculture Officer. The pharmacist exam was scheduled before the Agriculture Officer exam. Raman was not incharge of the exam scheduled immediately after the Pharmacist exam.