Q. Which of the following sets of cities is located on the reference longitude for Indian standard time
A) Chennai - Varanasi
B) Bangalore - Varanasi
C) Pondicherry - Varanasi
D) Kakinada - Pondicherry
โ Correct Answer: Kakinada - Pondicherry
Exam Insight
The reference longitude for IST is 82.5ยฐ E, and cities like Allahabad (Prayagraj) and Varanasi are located on this longitude, forming the basis of IST.