ra , ▁who ▁provided ▁her ▁vocals ▁for ▁a ▁song ▁named ▁" Ch a oro " ▁( a ▁l ull aby ). ▁ ▁Mary ▁Kom ▁was ▁developed ▁by ▁writer ▁S ai w yn ▁Qu ad ras , ▁who ▁suggested ▁the ▁story line ▁to ▁K umar ▁when ▁Kom ▁was ▁not ▁a ▁familiar ▁name ▁in ▁India ▁despite ▁her ▁numerous ▁achiev ements . ▁K umar ▁met ▁Kom ▁to ▁ask ▁her ▁permission ▁for ▁the ▁film , ▁before ▁her ▁bronze ▁medal ▁victory ▁at ▁the ▁ 2 0 1 2 ▁Summer ▁Olympics , ▁which ▁brought ▁her ▁recognition . ▁Ch op ra ▁under w ent ▁extensive ▁physical ▁training ▁for ▁three ▁months ▁to ▁att ain ▁a ▁mus cular ▁phys ique ▁and ▁learned ▁Kom ' s ▁distinct ▁box ing ▁style . ▁Princi pal ▁phot ography ▁started ▁in ▁June ▁ 2 0 1 3 ▁at ▁Film istan , ▁where ▁the ▁box ing ▁sequences ▁were ▁fil med . ▁After ▁plans ▁to ▁shoot ▁in ▁Kom ' s ▁h omet own , ▁Man ip ur , ▁were ▁dropped ▁due ▁to ▁safety ▁concerns , ▁Mary ▁Kom ▁was ▁shot ▁in ▁D har am sh ala ▁and ▁Man ali , ▁where ▁a ▁major ▁portion ▁of ▁Man ip ur ▁was ▁re created . ▁ ▁The ▁film ▁premier ed ▁at ▁the ▁ 2 0 1 4 ▁Toronto ▁International ▁Film ▁Festival , ▁becoming ▁the ▁first ▁H indi ▁film ▁to ▁be ▁screen ed ▁on ▁the ▁opening ▁night ▁of ▁the ▁festival . ▁Made ▁on ▁a ▁budget ▁of ▁ 1 8 0 ▁million , ▁Mary ▁Kom ▁was ▁released ▁on ▁ 5 ▁September ▁ 2 0 1