As of Oct 2020, the longest railway platform in India is in___________. It is around 1.3 km long.

Correct option is A

The correct answer is (a) Gorakhpur.

• As of October 2020, the Gorakhpur Junction railway station in Uttar Pradesh holds the record for having the longest railway platform in India.
• The platform is approximately 1.34 km long and was recognized as the longest in the world at the time of its inauguration in 2013.​
  

Information Booster:

• Kharagpur Junction railway station is the third-longest railway platform in India, located in the state of West Bengal and its length is 1,072 meters.
• Sonpur railway station is listed as one of the longest railway platforms in India with a length of 738 m and is known for India’s longest road-cum-rail bridge (Ganga Rail-Road Bridge).
• Deen Dayal Upadhyaya railway station (Mughalsarai) contains the largest railway marshalling yard in Asia.