Blood relations

A rigorous, zero-to-one master guide on Blood Relations designed for the UPSC Delhi Principal CRT. This chapter covers generational hierarchy mapping, symbol conventions, dialogue-based deduction, forward/backward coded relations, multi-variable family puzzles, and data sufficiency. It uniquely integrates logical kinship decoding with administrative service rule applications (CCS Conduct Rules, LTC, Compassionate Appointment, and Dependent Family Definitions under Delhi School Education Rules).