The correct answer is Kesariya Stupa.

 Key Points

• Kesariya Stupa:-
  • It is located in Kesariya, Champaran district of Bihar, India. It is the tallest Buddhist stupa in India, standing at a height of 104 feet (32 meters). 
  • The stupa dates back to the 3rd century BCE and was built during the Mauryan Empire in northern India.
  • The stupa was originally 70 feet (21 meters) tall, but it has been renovated several times in later centuries.
  • The stupa has a globular base divided into seven stages around it. Each stage is painted a different color, and each stage is adorned with numerous sculptures of Buddhist gods and goddesses.

  Additional Information

• Sanchi Stupa:-
  • It is a Buddhist monument located in Madhya Pradesh, India.
  • It is one of the oldest stone structures in India, and was originally commissioned by the Mauryan emperor Ashoka the Great in the 3rd century BCE.
  • The stupa is a hemispherical structure that contains the relics of the Buddha.
  • It is surrounded by four gateways, each of which is decorated with intricate carvings. The Sanchi Stupa is a UNESCO World Heritage Site.
• Maha Stupa:-
  • It is a Buddhist monument located in Anuradhapura, Sri Lanka.
  • It is one of the largest stupas in the world, and is said to contain the relics of the Buddha.
  • The Maha Stupa was built in the 3rd century BCE, and was later rebuilt and enlarged several times. The stupa is a symbol of the power and importance of Buddhism in Sri Lanka.
• Shanti Stupa:-
  • It is a Buddhist monument located in Rajagiri, India. It was built in 1963 by the Japanese monk Nichidatsu Fujii as a symbol of peace.
  • The stupa is made of white marble and has a gold-plated spire.
  • The Shanti Stupa is a popular tourist destination, and is also a place of pilgrimage for Buddhists from around the world.