These entries are queried from radb.net using whois, you can try my project getting these.
:AS136667 route: 103.99.192.0/22 descr: Space Applications Centre origin: AS136667 mnt-by: MAINT-IN-SACISRO mnt-routes: MAINT-IN-SACISRO last-modified: 2017-10-11T09:52:23Z source: APNIC rpki-ov-state: valid route: 103.99.192.0/23 descr: Space Applications Centre mnt-by: MAINT-IN-SACISRO origin: AS136667 last-modified: 2021-05-25T07:36:49Z source: APNIC rpki-ov-state: valid route: 103.99.192.0/24 descr: NATIONAL INFORMATICS CENTRE_OM201710113107954 origin: AS136667 mnt-by: MAINT-AS18101 changed: ip.nnoc [at] relianceada.com 20171018 #05:55:46Z source: RADB last-modified: 2023-11-13T15:51:37Z rpki-ov-state: valid route: 103.99.192.0/24 descr: Space Applications Centre mnt-by: MAINT-IN-SACISRO origin: AS136667 last-modified: 2021-05-25T07:36:57Z source: APNIC rpki-ov-state: valid route: 103.99.193.0/24 descr: NATIONAL INFORMATICS CENTRE_OM201710113107954 origin: AS136667 mnt-by: MAINT-AS18101 changed: ip.nnoc [at] relianceada.com 20171018 #05:55:46Z source: RADB last-modified: 2023-11-13T15:51:37Z rpki-ov-state: valid route: 103.99.193.0/24 descr: Space Applications Centre mnt-by: MAINT-IN-SACISRO origin: AS136667 last-modified: 2021-05-25T07:37:05Z source: APNIC rpki-ov-state: valid route: 103.99.194.0/23 descr: Space Applications Centre mnt-by: MAINT-IN-SACISRO origin: AS136667 last-modified: 2021-05-25T07:37:13Z source: APNIC rpki-ov-state: valid route: 103.99.194.0/24 descr: Space Applications Centre mnt-by: MAINT-IN-SACISRO origin: AS136667 last-modified: 2021-05-25T07:37:20Z source: APNIC rpki-ov-state: valid route: 103.99.194.0/24 descr: NATIONAL INFORMATICS CENTRE_OM201710113107954 origin: AS136667 mnt-by: MAINT-AS18101 changed: ip.nnoc [at] relianceada.com 20171018 #05:55:46Z source: RADB last-modified: 2023-11-13T15:51:37Z rpki-ov-state: valid route: 103.99.195.0/24 descr: NATIONAL INFORMATICS CENTRE_OM201710113107954 origin: AS136667 mnt-by: MAINT-AS18101 changed: ip.nnoc [at] relianceada.com 20171018 #05:55:46Z source: RADB last-modified: 2023-11-13T15:51:37Z rpki-ov-state: valid route: 103.99.195.0/24 descr: Space Applications Centre mnt-by: MAINT-IN-SACISRO origin: AS136667 last-modified: 2021-05-25T07:37:28Z source: APNIC rpki-ov-state: valid route6: 2001:df0:4840::/48 descr: Route Object country: IN origin: AS136667 mnt-by: MAINT-IN-SACISRO last-modified: 2022-05-11T10:54:37Z source: APNIC rpki-ov-state: valid