Number of Mines and Production of Marl by Private Sector in Tamil Nadu (2018-2019 to 2020-2021) | ||||||
(InĀ ' 000 Tonne) | ||||||
Grades | No. of Mines | Production | ||||
2018-2019 | 2019-2020 | 2020-2021 (P) | 2018-2019 | 2019-2020 | 2020-2021 (P) | |
Private Sector | ||||||
Captive | ||||||
Non captive | ||||||
'A' Category |