नीचे लहरें, ऊपर रेलगाड़ियाँ: नया पम्बन ब्रिज

नीचे लहरें, ऊपर रेलगाड़ियाँ: नया पम्बन ब्रिज: Imagine a bridge that trains use to go across the sea. Sometimes, big boats need to pass through the same