image_size |nationality ethnicity name field work_institutions residence article_title citizenship alma_mater
10px india iyengar c. n. shrinivasiyengar mathematics karnatak university dharwad , central college of bangalore university bangalore c. n. s. iyengar
 indian 15px calcutta university
c. n. s. iyengar

c. n. s. iyengar -lrb- - died 1972 -rrb- was an indian professor of mathematics and the founder head of the department of mathematics , karnatak university , dharwar .
the department was started in the year 1956 under the leadership of iyengar .
iyengar received a d.sc .
-lrb- c.c -rrb- from calcutta university , calcutta .
after retiring from the central college of bangalore university , he joined the karnataka university , dharwar in 1956 and retired from there in 1965 .
he worked in differential geometry and riemannian geometry .
iyengar wrote a book the history of ancient indian mathematics -lrb- 1967 - world press -rrb-
