Mixed General Knowledge - Corporate, PSUs, and Currencies

TRY is the ISO 4217 code for Turkish Lira (the 'Y' stands for 'Yeni' meaning 'New' after the 2005 redenomination). TUR is the country code, while LIR and TLA are not standard ISO currency codes used in international finance.

THB is the ISO 4217 currency code for Thai Baht, used in all international transactions involving Thailand's currency. BAT, BAH, and TBT are not valid ISO currency codes and would not be recognized in global banking systems.

The ISO 4217 currency code for the Norwegian Krone is NOK. 'NOR' is the country code, while 'KRO' and 'NKE' are not standard financial abbreviations for this currency.

JPY is the ISO 4217 currency code for Japanese Yen, one of the most traded currencies globally. YEN is the currency name but not the code, JAP is the country code, and JAY is not a valid ISO identifier.

AFN is the ISO 4217 currency code for Afghan Afghani, Afghanistan's official currency. AFG is the country code, while AHN and AGH are not valid ISO currency codes used in international transactions.

USD is the ISO 4217 currency code for United States Dollar, the world's primary reserve currency. USA is the country code, while ASD and DOL are not standard ISO currency identifiers used in global finance.

AUD is the ISO 4217 currency code for Australian Dollar. Note that option A (ASD) is incorrect - this is a common trap since the letters are rearranged. DOL and ATD are not valid ISO currency codes.

BHD is the ISO 4217 currency code for Bahraini Dinar. BAH is the country code, DIN is the currency name (not the code), and BAD is not a valid ISO currency identifier used in international banking.

BDT is the ISO 4217 currency code for Bangladeshi Taka. BAN is not a valid country or currency code, TAK is the currency name in romanized form, and BAT is incorrect (it's not the standard code).

EUR is the ISO 4217 currency code for the Euro, used by Belgium and 19 other European Union countries. BER, BEL, and BGE are not valid ISO currency codes - BEL is the country code for Belgium.

RUB is the ISO 4217 currency code for the Russian ruble, the official currency of Russia. Currency codes are standardized three-letter codes where the first two letters represent the country and the third represents the currency name. RBS, RRS, and RUS are not valid ISO currency codes.

Gas Authority of India Limited (GAIL) was incorporated in 1984 as a public sector undertaking under the Ministry of Petroleum and Natural Gas. It's India's largest natural gas processing and distribution company. The years 1967, 1956, and 1974 are not correct for GAIL's incorporation.

Hindustan Aeronautics Limited (HAL) was formed on October 1, 1964 through the merger of Hindustan Aircraft Limited (established 1940) and Aeronautics India Limited. HAL is now a premier aerospace and defense company in India.

HPCL (Hindustan Petroleum Corporation Limited) was established in 1974 after the government nationalized ESSO's operations in India and took over its assets. It became a Fortune 500 company and is one of India's largest oil PSUs.

Indian Oil Corporation Limited (IOCL) was formed in 1964 through the merger of Indian Oil Company (founded 1958) and Indian Refineries Limited. It is India's largest commercial enterprise and ranks among the top Fortune 500 companies globally.

N. Chandrasekaran (Chandra) joined TCS on January 27, 1987. He rose through the ranks to become CEO in 2010 and later Chairman of Tata Sons. This date is well-documented in his official biography and company records.

NIT Trichy was originally known as Regional Engineering College Trichy. This is a factual biographical question about educational history.

IEEE is the world's largest technical professional organization for electrical and electronics engineers. Senior IEEE membership is a recognized professional credential.