Deduction u/s 80ccd (1b) & 80ccd2 in case of central govt. employee

https://www.incometaxindia.gov.in/_layouts/15/dit/mobile/viewer.aspx?path=https://www.incometaxindia.gov.in/charts%20%20tables/benefits_available_to_individual_huf.htm&k=&IsDlg=0

Since NPS scheme was initiated from Jan 2004, contributions on/after this date are eligible for deduction.

80CCD(2): Employer's contribution up to 14% of salary (in case of CG employees) is not taxable [contribution will be added as income and deduction can availed u/s 80CCD(2)]

80CCD(1B): Additional contribution by the employee up to Rs.50k is an allowable deduction.

In addition to the above, employee's contribution up to 10% of salary can  be claimed as deduction u/s 80CCD(1) within the overall limit of Rs.1.5 lacs u/s 80C & 80CCD(1).

No no. I don't think so.

He can claim deductions from the period from which he is a member of NPS scheme. As NPS started in Jan 2004, contributions since then are eligible for deduction every year.

GPF is different from NPS. 80CCD is pertaining to NPS not GPF.

No, contributions are made as a proportion of only basic & DA