भारत में मोनाजाइट रेत से निम्नलिखित में से कौन सी धातु प्रचुर मात्रा में निकाली जाती है?

Which of the following belts in India is rich in copper and zinc minerals that are associated mainly with the Dharwar system of rocks?

In India, active diamond mines are primarily located in which state?

Which Indian state is the largest producer of silver?