▁New ▁Asp iration ▁Party ▁( N AP ) ▁of ▁General ▁Ch aval it ▁Y ong ch ai y ud h . ▁Ch atur on ▁became ▁a ▁" post er ▁child " ▁and ▁sp okes man ▁of ▁this ▁party . ▁After ▁the ▁blo ody ▁events ▁of ▁" Black ▁May " ▁ 1 9 9 2 , ▁Ch atur on ▁advoc ated ▁political ▁reform . ▁He ▁served ▁as ▁the ▁N AP ' s ▁representative ▁on ▁the ▁special ▁committee ▁for ▁constitution al ▁reform . ▁During ▁all ▁this ▁time ▁he ▁still ▁maintained ▁contact ▁with ▁his ▁ex - com r ades ▁from ▁the ▁time ▁of ▁C PT ' s ▁armed ▁struggle ▁in ▁Nan ▁Province ▁in ▁the ▁ 1 9 7 0 s . ▁In ▁ 1 9 9 5 ▁he ▁became ▁Chair man ▁of ▁the ▁parliament ary ▁Committee ▁on ▁Science ▁and ▁Technology , ▁in ▁ 1 9 9 6 ▁a ▁sp okes man ▁of ▁the ▁Constitution ▁D raft ing ▁Committee . ▁During ▁Ch aval it ' s ▁premi ership ▁from ▁ 1 9 9 6 ▁to ▁ 1 9 9 7 , ▁he ▁served ▁as ▁deput y ▁minister ▁of ▁fin ance . ▁In ▁ 1 9 9 7 ▁he ▁became ▁secretary - general ▁of ▁the ▁N AP . ▁In ▁ 1 9 9 8 , ▁he ▁was ▁a ▁member ▁of ▁the ▁committee ▁coordin ating ▁the ▁ceremony ▁to ▁remember ▁the ▁ 2 5 th ▁anni versary ▁of ▁the ▁ 1 9 7 3 ▁popular ▁u pr ising . ▁After ▁conflicts ▁with ▁old - style ▁polit icians ▁within ▁the ▁N