▁concerns ▁over ▁its ▁impact ▁on ▁the ▁area ' s ▁e col ogy ▁and ▁marine ▁wealth , ▁potential ▁loss ▁of ▁thor ium ▁depos its ▁in ▁the ▁area , ▁and ▁increased ▁risk ▁of ▁damage ▁due ▁to ▁t sun am is . ▁Some ▁organis ations ▁completely ▁opp ose ▁this ▁project ▁on ▁economic ▁and ▁environmental ▁grounds ▁and ▁claim ▁that ▁proper ▁scientific ▁studies ▁were ▁not ▁conducted ▁before ▁undert aking ▁this ▁project . ▁ ▁Origin ▁leg ends ▁ ▁Indian ▁culture ▁and ▁religion ▁includes ▁leg ends ▁that ▁the ▁structure ▁is ▁of ▁super natural ▁origin . ▁ ▁According ▁to ▁the ▁H indu ▁ep ic , ▁Ram ay ana , ▁Rav ana , ▁the ▁ten - head ed ▁demon ▁king ▁of ▁L anka ▁( S ri ▁L anka ), ▁ent iced ▁R ama ' s ▁wife ▁S ita ▁with ▁a ▁mag ical ▁golden ▁de er , ▁then ▁kid n apped ▁her ▁and ▁took ▁her ▁to ▁L anka , ▁doing ▁this ▁for ▁reven ge ▁against ▁R ama ▁and ▁his ▁brother ▁Lak sh mana ▁for ▁having ▁cut ▁off ▁the ▁nose ▁of ▁Rav ana ' s ▁sister , ▁Sh ur pan ak ha . ▁ ▁To ▁rescue ▁S ita , ▁R ama ▁needed ▁to ▁cross ▁to ▁L anka . ▁Bra h ma ▁created ▁an ▁army ▁of ▁van ara ▁( int ellig ent ▁war rior ▁mon keys ) ▁to ▁aid ▁R ama . ▁Led ▁by ▁N ila ▁and ▁under ▁the ▁engineering ▁direction ▁of ▁N ala , ▁the ▁van ara ▁constructed ▁a ▁bridge ▁to ▁L anka ▁in ▁five ▁days . ▁ ▁R ama ▁crossed ▁the ▁sea ▁on