Based on my research and limited understanding my conclusion is Anant Raj Limited and TARC are separate identities and have nothing to do with each other.
Ashok Sarin and Anil Sarin are brothers and son of Lala Anant Ram Sarin. The company was divided somewhere in 2018 and Ashok Sarin and family runs Anant Raj Limited and Anil Sarin and family runs TARC.
There are no common promoter in Anant Raj and TARC.
Promotes of Anant Raj Limited –
and promoters of TARC –
Someone who want to deep dive in the scheme of arrangement for division of the company and go through this document –
https://www.primeinfobase.in/z_ANANTRAJ/files/Annexure_3_Audit_Committee_Report.pdf