EDUCATIONAL SCIENTIFIC CO.
New No. 172, Old No. 159, Govindappa Naicken Street,, Chennai - 600001, Tamil Nadu, India
No:1/3 , Kundrathur Main Road , Periya Panicheri ,, Chennai - 602101, Tamil Nadu, India
5/1, Pillayar Koil Street, Dharga Road, Essa Pallavaram,, Chennai - 600043, Tamil Nadu, India
2/14, Anna Street, Bakiyathammal Nagar, Padi,, Chennai - 600050, Tamil Nadu, India
No. 112, (old. 8), Nyniappa Naicken Street, Park Town,, Chennai - 600003, Tamil Nadu, India
51-g, First Cross Street, Sabari Nagar, Porur,, Chennai - 600116, Tamil Nadu, India