Which country won the ICC Champions Trophy title in 2017 by defeating India in the final?

Introduction / Context:
The ICC Champions Trophy is one of the major limited overs tournaments in world cricket, and its winners are frequently tested in sports general knowledge questions. In 2017 the tournament gained special attention in India because the national team reached the final. This question asks which country actually won the ICC Champions Trophy title in 2017 by defeating India in that final match, so it checks both memory of the winner and awareness of the opponent.

Given Data / Assumptions:

• The tournament in question is the ICC Champions Trophy 2017.
• India reached the final in that edition.
• The correct option must be the team that beat India in the final to lift the trophy.
• All listed countries are regular participants in ICC tournaments.

Concept / Approach:
To answer, we recall the Champions Trophy 2017 final, played at The Oval, London. The match was widely watched in the Indian subcontinent. Pakistan, after entering the tournament as a lower ranked side, produced a series of strong performances and reached the final against India. In the final Pakistan batted first, scored a big total, and then bowled India out, winning comfortably. Therefore, Pakistan became the ICC Champions Trophy 2017 winner. The method is to connect the year, venue, and high profile India versus Pakistan final.

Step-by-Step Solution:
Step 1: Note that the question clearly specifies the 2017 edition of the ICC Champions Trophy.Step 2: Recall that India played the final of this edition against Pakistan.Step 3: Remember the result that Pakistan defeated India by a large margin in the final.Step 4: Match this memory with the answer options: Bangladesh, India, Australia, Pakistan, New Zealand.Step 5: Identify Pakistan as the only team in the list that fits the description of beating India in the 2017 final.

Verification / Alternative check:
Another way to verify is to remember that the Champions Trophy 2017 final is often mentioned in discussions about India versus Pakistan rivalries, because Pakistan surprised many fans with their dominant performance. News highlights from that time and tournament summaries mention Pakistan as champions and India as runners up. This long term media coverage makes Pakistan as the winner a reliable and verifiable memory.

Why Other Options Are Wrong:
Bangladesh did not reach the final of the 2017 Champions Trophy, so it could not have been the winner. India did reach the final, but the team lost the match, so it was the runner up, not the champion. Australia, although a strong one day side, did not win this particular tournament. New Zealand also participated but did not reach or win the final. Hence all these options are incorrect for the 2017 title.

Common Pitfalls:
A common error is emotional bias, where some learners choose India automatically because they remember India playing in the final and subconsciously assume the team must have won. Another pitfall is confusing different ICC tournaments such as the ICC Cricket World Cup or ICC World T20, where other teams and years might be involved. Careful reading of the specific tournament name and year helps avoid these mistakes.

Final Answer:
The country that won the ICC Champions Trophy 2017 by defeating India in the final is Pakistan.