question_subject:
question_exam:
stats:
keywords:
The correct answer is option 3: Only 3.
Explanation:
1. The first statement is incorrect. In the pin code system of India, the country has been divided into 8 zones, not 10. The zones are categorized based on the first digit of the postal index number (PIN).
2. The second statement is incorrect. The postal index number system, or PIN system, was introduced in India before the year 1980. It was introduced on August 15, 1972, with the aim of simplifying and improving the efficiency of mail delivery.
3. The third statement is correct. Bharat Sanchar Nigam Ltd. (BSNL) is indeed a 100 per cent Government of India-owned Public Sector Undertaking. It is the largest provider of fixed telephony and broadband services in India and has a significant presence in the mobile telephony space as well.