As per 2023 CGL exam standards, the last person to get a post of Sub - Inspector in CBI, secured 543.25 marks out of 700 i.e. T1 + T2 + T3 under UR category. Consider that you would secure an avg. score of 60 in T3, u still need to score 483.25+ marks out of 600 to achieve your goal.Not many people aspire to get into CBI because of the constant workload and busy schedule. Adding to it is the fact that u will have to travel a lot while u will be on field, in the course of an investigation. Therefore, the cutoff does not escalate much compared to other similar paying Group B posts.As an added incentive for your hard work, u get 25% extra D.A. than all other 4600 grade pay posts and u are also entitled to get 13 months salary straight away which would roughly amount to an extra salary of 9k per month + the complete 13th month salary.Add to it the pride of working for CBI, the least corrupt department under The Government of India.Cheerio,Good Luck.