General Knowledge · Telecommunications in India
In which year and between which two cities was India's first Subscriber Trunk Dialling (STD) service started?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11995 AD, between Kolkata and Haldia
- 21986 AD, between Mumbai and Pune
- 31972 AD, between Delhi and Bangalore
- 41960 AD, between Lucknow and Kanpur✓
Correct answer
1960 AD, between Lucknow and Kanpur
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