_______ are rock shelters in South India are known for their prehistoric stone tools.
Gudiyam caves
The Nilgiris is a place of pleasant ____________.
Climate
Mamallapuram is declared by UNESCO as a World _________ site.
Heritage
The Madras Presidency was renamed as ______________ in 1947.
Madras State.
Madras State was officially renamed as Tamil Nadu in _________ .
1969
The Vainu Bappu Observatory is an __________ observatory.
Astronomical
The first ____________ industry of India was located at Porto Novo in 1830.
Iron and steel
MADRAS PRESIDENCY was formed in _______.
1801
Salem District is an area surrounded by ____________.
Mountains
In 1862, Madras province was divided into ________ districts.
22