These entries are queried from radb.net using whois, you can try my project getting these.
:AS137158 route: 103.108.51.0/24 descr: A-net Communication India Pvt.ltd origin: AS137158 mnt-by: MAINT-IN-ANET mnt-routes: MAINT-IN-ANET last-modified: 2018-01-29T05:34:50Z source: APNIC rpki-ov-state: valid route: 103.151.70.0/24 descr: A-net Communication India Private Limited mnt-by: MAINT-IN-ANET origin: AS137158 last-modified: 2020-07-05T02:17:52Z source: APNIC rpki-ov-state: valid route6: 2001:df1:7e40::/48 descr: Route Object country: IN origin: AS137158 mnt-by: MAINT-IN-ANET last-modified: 2022-11-22T04:57:49Z source: APNIC rpki-ov-state: valid