Solution

We can solve this by creating a table and using the process of elimination to match each person with their destination and mode of transport.

Key Deductions:

1. From the clues, we can directly establish:
   
   • B → Kolkata (Airplane)
   • C → Bangalore (Car)
   • D → Traveled by Boat
   • E → Traveled by Train
2. The only person and mode of transport left is A, who must have traveled by Bus.
3. The clue "Goa is not connected by bus to Delhi" means A did not travel to Delhi.
4. The clue "The person who traveled to Delhi did not travel by boat" means D did not travel to Delhi.

Conclusion:

Since A, B, C, and D are all ruled out from traveling to Delhi, the only person remaining is E. Therefore, E traveled to Delhi.