Dear Varaprasad Garu,
No doubt our monthly pension is paid as per BEPR,1995 and half yearly DR to pensioners is also paid in terms of Regulation 37,Appendix-II.
Once changes taken place in calculations of DR based on Bipartite Settlements/Joint Notes ,same may be incorporated under BEPR1995,subsequently.
Reffering to your point, it is to be noted that Under 12th BPS/JN, DR on pension ( including SBI) was revised at the rate of 1% on increase/decrease on 123.03 points to employees /family pensioners retired on or after 1.11.2022 on AICPIN 2016=100.(On Merger of CPI 8088 points)
Fact is that this change in calculation has not extended to pre 1.11.2022 pensioners,who were following old DR rates,as per regulations.Not on account of any 'bar'.
Regards
Mohan.P
.