खालील विधाने विचारात घ्या :
(a) वाहतूक बबल्स् (बुडबुडे) म्हणजे कोविड-19 महामारीमुळे दोन शहरांमधील देशांतर्गत तात्पुरती रेल्वे वाहतूक व्यवस्था होय.
(b) कोविड-19 महामारीमुळे दोन देशांदरम्यान वाहतूक बबल्स् (बुडबुडे) ही तात्पुरती हवाई प्रवास व्यवस्था होय.
वरीलपैकी कोणते/ती विधान/ने बरोबर आहे/त ?

The correct answer is Option B (Only (b) is correct).

Key Points:
• During the COVID-19 pandemic, regular international commercial flights were suspended globally in early 2020.
• Definition of Transport Bubbles (Air Travel Bubbles): Bilateral reciprocal arrangements created between two countries to restart commercial passenger flight services amidst travel bans before regular international operations could fully resume.
• Implementation in India: The Ministry of Civil Aviation established air bubble agreements with over 35 countries (including USA, UK, UAE, Germany, France) to facilitate safe, quarantine-regulated international travel.
• Rail Transport: Domestic temporary train services in India were operated under the name *Shramik Special Trains* or *Special Express Trains*, not transport bubbles.
• Therefore, only statement (b) is correct (Option 2).
• Key Takeaway: Transport Bubbles were temporary bilateral air travel agreements between countries during the COVID-19 pandemic.