ore ▁were ▁for ▁the ▁main ▁statue , ▁ ₹ 2 3 5   cr ore ▁for ▁the ▁exhibition ▁hall ▁and ▁convention ▁centre , ▁ ₹ 8 3   cr ore ▁for ▁the ▁bridge ▁connecting ▁the ▁mem orial ▁to ▁the ▁main land ▁and ▁ ₹ 6 5 7   cr ore ▁for ▁the ▁maintenance ▁of ▁the ▁structure ▁for ▁ 1 5 ▁years ▁after ▁its ▁completion . ▁The ▁Sad hu ▁Bet ▁h il lock ▁was ▁fl atten ed ▁from ▁ 7 0 ▁to ▁ 5 5 ▁metres ▁to ▁lay ▁the ▁foundation . ▁ ▁L & T ▁employed ▁over ▁ 3 0 0 0 ▁workers ▁and ▁ 2 5 0 ▁engine ers ▁in ▁the ▁statue ' s ▁construction . ▁The ▁core ▁of ▁the ▁statue ▁used ▁ ▁of ▁c ement ▁concrete , ▁ 6 5 0 0 ▁t onnes ▁of ▁struct ural ▁steel , ▁and ▁ 1 8 5 0 0 ▁t onnes ▁of ▁rein for ced ▁steel . ▁The ▁outer ▁fa ç ade ▁is ▁made ▁up ▁of ▁ 1 7 0 0 ▁t onnes ▁of ▁bronze ▁pl ates ▁and ▁ 1 8 5 0 ▁t onnes ▁of ▁bronze ▁cl adding ▁which ▁in ▁turn ▁compr ise ▁ 5 6 5 ▁macro ▁and ▁ 6 0 0 0 ▁micro ▁pan els . ▁The ▁bronze ▁pan els ▁were ▁cast ▁in ▁Ji ang xi ▁T ong q ing ▁Metal ▁Hand ic raft s ▁Co . ▁Ltd ▁( the ▁T Q ▁Art ▁found ry ) ▁in ▁China ▁as ▁suitable ▁facilities ▁were ▁un available ▁in ▁India . ▁ ▁The ▁bronze ▁pan els