What is this Hindu temple in India known as?

Swaminarayan Akshardham in Gandhinagar, Gujarat, India is a large Hindu temple complex inspired by Yogiji Maharaj (1892-1971) the fourth spiritual successor of Swaminarayan and created by Pramukh Swami Maharaj (1921-2016), the fifth spiritual successor of Swaminarayan according to the BAPS (Bochasanwasi Akshar Purushottam Swaminarayan Sanstha) denomination of Swaminarayan Hinduism. Located in the capital of Gujarat, the complex was built over 13 years and is a tribute to Swaminarayan and his life and teachings. At the center of the complex is the Akshardham mandir, which is built from 6,000 metric tons (13227736 lbs) of pink sandstone from Rajasthan.

The foundation stone-laying ceremony for the Akshardham mandir was conducted by Pramukh Swami on 14 December 1979, and the foundation was completed in 1981. Artisans skilled in stonework prepared the stones used in the Akshardham mandir and they used the chisels to detail the designs and figurines into stone; and finally, emery was used to file and polish the stone to a smooth finish. While the mandir structure itself was completed in 1985, the concepts and designs for the exhibition halls were developed over the next three years, and work on the exhibitions and colonnade began in 1988. The completed complex was inaugurated on 4 November 1992.