Explanation:

- The Indian Railways launched two long-haul freight trains, aiming to tackle capacity constraints on critical rail sections.

- These trains are uniquely designed to handle larger freight loads, improving efficiency and reducing congestion.

- Option 1: Himalaya and Thar - These names evoke geographical features in India but are not related to the long-haul freight trains.

- Option 2: Aakash and Vijay - These names suggest sky and victory, but they are unrelated to the freight train project.

- Option 3: Sagar and Prithvi - Names representing ocean and earth, but again, not linked to the freight train initiative.

- Option 4: Trishul and Garuda - These are indeed the correct names for the long-haul freight trains launched by Indian Railways.