Find the odd one out. [#1670]

Bats are flying mammals of the order Chiroptera. With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, flying with their very long spread-out digits covered with a thin membrane or patagium.

---

Bats are flying mammals of the order Chiroptera. With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, flying with their very long spread-out digits covered with a thin membrane or patagium.

1526

---

1526

17 which is a Prime number.

---

17 which is a Prime number.

Muhammad bin Tughluq

---

Muhammad bin Tughluq

There is no evidence that iron was used in the Indus Valley Civilization, which was a Bronze Age civilization. The Indus Valley Civilization used metals like copper, bronze, gold, and silver.

---

There is no evidence that iron was used in the Indus Valley Civilization, which was a Bronze Age civilization. The Indus Valley Civilization used metals like copper, bronze, gold, and silver.

Bats are flying mammals of the order Chiroptera. With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, flying with their very long spread-out digits covered with a thin membrane or patagium.

---

Bats are flying mammals of the order Chiroptera. With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, flying with their very long spread-out digits covered with a thin membrane or patagium.

Tusu Puja is a significant harvest festival primarily observed by the tea tribes and other tribal communities in Assam, as well as in parts of West Bengal, Jharkhand, and Odisha.

---

Tusu Puja is a significant harvest festival primarily observed by the tea tribes and other tribal communities in Assam, as well as in parts of West Bengal, Jharkhand, and Odisha.

Dihingia Alun Borbarua was the commander of the Ahom forces during the Battle of Itakhuli, where they defeated the Mughals and reclaimed Guwahati.

---

Dihingia Alun Borbarua was the commander of the Ahom forces during the Battle of Itakhuli, where they defeated the Mughals and reclaimed Guwahati.

Bhupen Hazarika's first directed film was "Era Bator Sur," released in 1956. This Assamese film showcased his talents as a director, producer, music director, lyricist, singer, and actor. The film's story and music resonated with the people of Assam.

---

Bhupen Hazarika's first directed film was "Era Bator Sur," released in 1956. This Assamese film showcased his talents as a director, producer, music director, lyricist, singer, and actor. The film's story and music resonated with the people of Assam.

An even number is a whole number that is divisible by 2, such as 4, 6, or 8.

---

An even number is a whole number that is divisible by 2, such as 4, 6, or 8.

Lachit Borphukan is a legendary figure in Assamese history, renowned for his military prowess and leadership in defeating the Mughal forces at the Battle of Saraighat.

---

Lachit Borphukan is a legendary figure in Assamese history, renowned for his military prowess and leadership in defeating the Mughal forces at the Battle of Saraighat.