Consider the following description of the Samadhi of a former Prime Mi

Consider the following description of the Samadhi of a former Prime Minister of India :
Central Samadhi platform comprises nine square black polished granite solid stone blocks, capped with a ‘Diya’ in the centre. The number nine holds significance and represents the navarasas, navaratnas and navagrahas. The placement of the nine-square Samadhi is in a circular lotus shaped pattern. The nine-square platform is accessed in four cardinal directions by pathways made in white composite tiles so that the floor does not get heated.
Identify the Samadhi :

Shakti Sthal
Shantivan
Sadaiv Atal
Veer Bhumi
This question was previously asked in
UPSC NDA-1 – 2019
The description corresponds to the Samadhi of former Prime Minister Atal Bihari Vajpayee, named Sadaiv Atal.
The architectural description, particularly the use of nine squares, the ‘Diya’ in the center, the reference to ‘nava’ concepts (navarasas, navaratnas, navagrahas), and the circular lotus pattern, are specific design elements incorporated in the Sadaiv Atal memorial. The number nine aligns with the birth date of Atal Bihari Vajpayee (25th December, summing to 9) and his being the 9th Prime Minister of India.
Sadaiv Atal is located near Raj Ghat in Delhi. Shakti Sthal is the memorial for Indira Gandhi, Shantivan for Jawaharlal Nehru, and Veer Bhumi for Rajiv Gandhi, each having distinct architectural characteristics.