आज का इतिहास: चौराहे पर हादसे के बाद ट्रैफिक सिग्नल में रेड और ग्रीन के बीच आई थी यलो लाइट
Hindi NewsNationalReceived A Patent For An Automated Traffic Signal, Due To Which The Yellow Light Was Attached To The Traffic...
due to which the yellow light was attached to the traffic signal
