▁and ▁he ▁not ified ▁the ▁acting ▁speaker ▁of ▁the ▁National ▁Assembly , ▁M amm ad ▁Y us if ▁J af ar ov ▁that ▁the ▁government ▁was ▁in ▁no ▁position ▁to ▁be ▁formed . ▁At ▁the ▁same ▁time , ▁H aj in ski ▁left ▁the ▁ranks ▁of ▁Mus av at ▁party ▁and ▁officially ▁joined ▁the ▁B ols he vik ▁Party . ▁With ▁the ▁invasion ▁of ▁the ▁Red ▁Army ▁on ▁April ▁ 2 8 , ▁ 1 9 2 0 ▁A zer ba ij an ▁Democratic ▁Republic ▁ceased ▁to ▁exist . ▁ ▁Soviet ▁A zer ba ij an ▁During ▁the ▁Soviet ▁rule , ▁H aj in ski ▁worked ▁in ▁the ▁Agricult ural ▁Council ▁of ▁A zer ba ij an . ▁From ▁ 1 9 2 3 ▁on , ▁he ▁served ▁as ▁deput y ▁chairman ▁of ▁Trans c au cas ian ▁State ▁Pl anning ▁Committee . ▁He ▁was ▁later ▁arrested ▁on ▁the ▁order ▁of ▁Lav r enti y ▁Ber ia , ▁then ▁the ▁first ▁secretary ▁of ▁the ▁T ran c au cas ian ▁region . ▁After ▁being ▁tort ured , ▁H aj in ski ▁died ▁on ▁February ▁ 9 , ▁ 1 9 3 1 ▁in ▁a ▁T if lis ▁prison . ▁ ▁Works ▁In ▁ 1 9 1 2 , ▁H aj in ski ▁author ed ▁a ▁book ▁on ▁architect ural ▁improvements ▁of ▁B aku ▁published ▁by ▁the ▁B aku ▁local ▁municipality . ▁ ▁See ▁also ▁Minister ▁of ▁Foreign ▁Affairs ▁of ▁A zer ba ij an ▁A zer ba ij an ▁Democratic ▁Republic ▁A zer