hi,

see the eligibility criteria for gate 2022 is candidates who has completed the 3 year or 4 years course of bachelors degree or in final year of the 3 year or 4 year duration of bachelors course are eligible to apply. so since you have completed your bachelors degree you are eligible to apply for gate exam.

now coming to CSIR net exam eligibility criteria, which states that candidates must  M.Sc. or equivalent degree/Integrated BS-MS/BS-4 years/BE/B Tech/B. Pharma /MBBS with at least 55% marks to be eligible to apply for the exam.

hope it helps.