so anyone with average mark of 82% and 2nd pass for IR shouldnt even bother applying for a job??
The criteria mentioned are mainly targeted at the 'recommended applicants' from the FTOs. As stated, 85% groundschool and first series passes are the normal criteria for guys being forwarded from their schools directly to the airlines (such as BE and BA).
If you are applying directly to the company than as long as you meet the criteria on the application of course you should bother!