state gov APPSC (ఆంధ్రప్రదేశ్) Group 2 (Pre + Mains) Mock Test 2023 Current Affairs Science and Technology
When will the scale of BS-4 vehicles for the purpose of curbing pollution be stopped?
1
1 March, 2020
2
1 April, 2020
3
30 April, 2020
4
1 January, 2021