it's called MATRI MANDIR not maitri mandir

this slide share article will provide you with enough information-

https://www.slideshare.net/arathyprasad/matrimandir-46972984

https://en.wikipedia.org/wiki/Matrimandir

the twelve petals of matri mandir-

https://www.auroville.org/contents/2141

https://web.archive.org/web/20050404020613/http://auroville.org:80/thecity/matrimandir/mm_symbolism.htm

for additional information please refer these links-

https://www.auroville.org/contents/2084

https://worldarchitecture.org/architecture-news/cvcep/a_modern_temple_for_all_religions_roger_angerdesigned_matrimandir_in_auroville.html

https://www.auroville.org/contents/678

technical info about matri mandir-

https://www.auroville.org/contents/685

http://www.archinomy.com/case-studies/1968/matrimandir-auroville

here is a vimeo link-

https://vimeo.com/44315540