Agra is north of Erode and west of Calcutta. Bombay is north of Agra and west…

Concept: In a linear-ordering direction puzzle, plot the towns independently on a north-south scale and an east-west scale using the given clues. Two towns end up with a determined relative order on a scale only when the clues chain them together; if no clue (directly or through a chain) links a pair, their relative order on that scale stays undetermined. An extra statement genuinely "makes the information more specific" only when it fixes such an undetermined pair — restating an order that is already forced by the existing chain adds nothing new.

Application: Statement (2)'s town east of Bombay and the town in statements (4)–(6) are the same place, Faridabad — so all six statements together give clues for six towns: Agra, Bombay, Calcutta, Delhi, Erode, and Faridabad.

• North-south scale: statement (2) gives Bombay north of Agra; statement (1) gives Agra north of Erode; statement (4) gives Erode north of Faridabad; statements (5) and (6) place both Delhi and Calcutta south of Faridabad. So the order is Bombay > Agra > Erode > Faridabad > {Delhi, Calcutta} — but nothing fixes whether Delhi or Calcutta lies further north; that pair is the one undetermined relation.

• East-west scale: statement (2) gives Bombay west of Faridabad; statement (5) gives Faridabad west of Agra; statement (1) gives Agra west of Calcutta; statements (3) and (6) place Delhi east of Agra and east of Calcutta; statement (4) gives Delhi west of Erode. Chaining these gives the complete order Bombay < Faridabad < Agra < Calcutta < Delhi < Erode — every pair on this scale is already fixed, so there is no gap here.

The only fact that would remove an ambiguity is one that fixes the north-south order between Calcutta and Delhi. "Calcutta is north of Delhi" does exactly that, so it is the statement that makes the given information more specific.

Cross-check: The other statements only restate orders that are already forced by the chain:

• "Erode is north of Delhi" — already forced, since Erode is north of Faridabad and Faridabad is north of Delhi.

• "Agra is east of Bombay" — already forced, since Bombay is west of Faridabad and Faridabad is west of Agra.

• "Calcutta is east of Faridabad" — already forced, since Faridabad is west of Agra and Agra is west of Calcutta.

None of these narrows anything further, confirming that only the Calcutta–Delhi relation was left open.