India's famous floating post office is situated on:

India's floating post office is located on a houseboat on Dal Lake in Srinagar, Jammu and Kashmir. It is widely described as the only floating post office in the world.

About the floating post office:

• It operates from a decorated houseboat moored on Dal Lake.
• It dates back to the British period, when it was known as the "Nehru Park Post Office".
• In August 2011, it was renamed the "Floating Post Office" by the then Chief Postmaster General of Jammu and Kashmir, John Samuel.
• It offers regular postal services, such as selling stamps, sending letters and parcels, and savings services, to tourists and local residents, including people who live on houseboats.
• It has a small philatelic museum showing the history of postage stamps.
• Letters posted here receive a special postmark (cancellation stamp) showing a "shikara" and the Dal Lake, which makes them popular with tourists and stamp collectors.

About Dal Lake:

• It is called the "Jewel in the crown of Kashmir" and the "Lake of Flowers".
• It is famous for its houseboats, "shikaras" (small wooden boats) and floating gardens ("rad").
• It has a floating vegetable market.
• Char Chinar is an island in the lake with four chinar trees.
• The Mughal gardens, such as the Shalimar Bagh (built by Jahangir) and the Nishat Bagh (built by Asaf Khan), lie along its shores.

About Indian postal history:

India Post was established in 1854 under Lord Dalhousie.

The PIN code system was introduced on 15 August 1972. India is divided into 9 PIN zones (8 regional and 1 functional zone for the Army Postal Service).

The world's highest post office is at Hikkim, in Spiti, Himachal Pradesh (about 4,400 metres).

India Post Payments Bank was launched in 2018.

Why not the other options?

• ✗Loktak Lake, Manipur, is famous for its floating "phumdis" and the Keibul Lamjao National Park.
• ✗Vembanad Lake, Kerala, is famous for the Nehru Trophy boat race.
• ✗Chilika Lake, Odisha, is India's largest brackish-water lagoon.