I want to know if I can pay for exams and pass pls tell me someone from Kolkata

I'm currently 22 years old from Kolkata and I completed my BA degree back 2 years ago...I've been out of touch with science subjects for so long and finding it a bit dfficult...I opted for 4 subjects English, maths, physics and chemistry for my exam april 2026...I wanted to know if I can pay(bribe the invigilators) for exams and pass...Will they allow mobile phones in exam hall!!!pls I've heard cheating in common in nios wanted to know if I can do it in kolkata pls someone answer me...I'm tensed as I wanted to pass the exams quickly for my higher education purpose!!!!