India’s first Hydrogen dispensing station is operational at Indian Oil’s R and…

"First in India" current-affairs questions test whether a landmark launch or inauguration is tied to the exact site where it happened — often a company's specific R&D or pilot facility — rather than to the company's corporate headquarters or to a state capital that merely sounds prominent.

IndianOil Corporation Limited (IOCL) operates its principal Research & Development Centre at Faridabad, Haryana, in the Delhi-NCR region. This is the facility where IndianOil commissioned India's first hydrogen dispensing station, enabling hydrogen and hydrogen-CNG-blend fuelled vehicles to be refuelled as part of the country's hydrogen-fuel pilot programme. The Press Information Bureau and IndianOil's own announcements both confirm this location, and Faridabad is the option marked correct in RSSB's official Patwar 2025 Shift 1 answer key for this question.

Checking each offered city by what it is actually known for:

• Jaipur — the capital of Rajasthan, known for the state’s own solar and renewable-energy programmes, not for IndianOil’s R&D facility.

• Faridabad — an industrial city in Haryana within the Delhi-NCR region; the site of IndianOil’s principal R&D Centre and its first hydrogen dispensing station.

• Hyderabad — the capital of Telangana, home to several central research, pharmaceutical, and defence-research institutions, but not IndianOil’s R&D Centre.

• Delhi — India’s national capital and the location of IndianOil’s corporate headquarters and the Ministry of Petroleum & Natural Gas, but its R&D Centre itself is sited at Faridabad, not in Delhi.

Hence, the correct completion is Faridabad — the site of IndianOil’s R&D Centre and India’s first operational hydrogen dispensing station.