Explain the constitutional provisions under which Legislative Councils are established. Review the working and current status of Legislative Councils with suitable illustrations.

उन संवैधानिक प्रावधानों को समझाइए जिनके अंतर्गत विधान परिषदें स्थापित होती हैं। उपयुक्त उदाहरणों के साथ विधान परिषदों के कार्य और वर्तमान स्थिति का मूल्यांकन कीजिए। (250 words)
Explain the constitutional provisions under which Legislative Councils are established. Review the working and current status of Legislative Councils with suitable illustrations. (250 words)