কলকাতা মেট্রোর ব্লু-লাইনে স্টিলের জায়গায় অ্যালুমিনিয়ামের থার্ড লেনThe Kolkata Metro is switching from steel to aluminum for its third line, running from Kavi Subhash to Dakshineswar. The process of removing the steel lines has already begun. The Metro authorities claim that using aluminum will save at least 1 crore rupees annually in energy costs and significantly reduce carbon...
more... emissions.
Kolkata Metro me ab steel ki jagah aluminium ka use hoga third line ke liye, jo Kavi Subhash se Dakshineswar tak jaati hai. Steel lines ko hataane ka kaam shuru ho chuka hai. Metro authorities ka kehna hai ki aluminium ka use karne se saal bhar me kam se kam 1...
more... crore rupaye ki energy saving ho sakti hai aur carbon emission bhi kaafi kam hoga.