Indian Rivers and Waterways

The Brahmaputra river is known as Tsangpo (or Yarlung Tsangpo) in Tibet, where it originates. It enters India through Arunachal Pradesh as the Siang/Dihang, becomes the Brahmaputra in Assam, and flows into Bangladesh as the Jamuna. Ganga, Indus, and Sutlej have different Tibetan names.

Narmada and Tapti flow from East to West in India.

Prime Minister Manmohan Singh declared the Ganga as India's first national river in 2008, establishing the National Ganga River Basin Authority to monitor its cleanliness and conservation. This recognized the Ganga's cultural and ecological importance as India's holiest river. Other major rivers like Yamuna, Brahmaputra, and Narmada were not given this national river status.

Luni is a river in Rajasthan that flows into the Rann of Kutch - it is NOT a tributary of the Indus river system. Sutlej, Ravi, and Jhelum are all major tributaries of the Indus, flowing from India into Pakistan. The Luni is the only option that doesn't join the Indus.

Jog Falls, located in Karnataka's Shivamogga district, is created by the Sharavathi River falling from a height of 253 meters. It is the second-highest plunge waterfall in India and a major hydroelectric power generation site.

Nizam Sagar Dam is built across the Manjira River, a tributary of the Godavari River. It is located in Telangana state (formerly part of Andhra Pradesh). The dam is not built on the Godavari main river (B), Krishna (C), or Mahanadi (D).

The Brahmaputra River is known as the Jamuna River in Bangladesh after it merges with the Teesta River. It is not called Bhima, Padma, or 'None of these'.

2 and 3 only

Idukki Dam in Kerala is recognized as India's first arch dam. Completed in 1975, it is built across the Periyar River and is one of the highest arch dams in Asia.

Wular Lake in Jammu and Kashmir is the largest freshwater lake in India, covering approximately 96-100 square kilometers. Chilka Lake is larger but is a brackish water lagoon, not freshwater. Jaisamand is also a freshwater lake but smaller than Wular, while Sambhar is a salt water lake.

Betwa River joins Yamuna directly near Hamirpur, Uttar Pradesh. Kosi and Gandak are major tributaries of the Ganga River, not Yamuna. Kosi joins Ganga near Kursela in Bihar, while Gandak confluences with Ganga near Patna. Only Betwa among the three is a Yamuna tributary, making '1 only' the correct answer.

Mahatma Gandhi Hydroelectric Project (also known as Sharavati Project) is on Sharavati River in Karnataka. It's famous for the Jog Falls, which is created by this dam. The project harnesses the Sharavati's waters as it drops from the Western Ghats. It's not on Godavari, Cauvery, or Krishna - those are different major peninsular rivers.

The Sundarbans Delta is formed by the confluence of the Ganga and Brahmaputra rivers (and their distributaries). It is the world's largest river delta and spans across Bangladesh and West Bengal, India. The delta is named after the Sundari trees that grow abundantly in the region.

Allahabad (now officially Prayagraj) is the confluence point of the Ganga and Yamuna rivers. This sacred confluence, called Triveni Sangam (where the invisible Saraswati is also believed to join), is a major pilgrimage site. The city's name literally means 'city of Allah' given by Mughal emperor Akbar.

Alexander the Great fought the famous Battle of the Hydaspes against King Porus in 326 BCE on the banks of the Jhelum River (called Hydaspes in Greek). This battle took place in present-day Punjab, Pakistan. Despite Alexander's victory, he was so impressed by Porus's bravery that he allowed him to continue ruling his kingdom.