আসুন জানি ক্যামিকেল মুক্ত আম চেনার উপায় /How to identify chemical free mango

Описание: Now a days most of the mangoes are riped artificially. Used calcium carbide & ethylene for riped mango & used formalin for preservation. This chemicals are dangerous for health.So we should to know, How to identify chemical free mango.