New Delhi, April 3 : Vice President and Rajya Sabha Chairman M Venkaiah Naidu on Sunday said Rajya Sabha has played a pivotal role in strengthening the democracy. “Ever since its inception, the Rajya Sabha has played a crucial role in strengthening parliamentary democracy,” Naidu, said in tweet, while extending his greetings to the countrymen on the occasion of ‘Rajya Sabha Day’. Taking the opport ty, the Vice President appealed to the members of the Upper House to engage in informed and constructive debates by keeping the welfare of the people in mind. Last year, Naidu in his address at a programme here, had said that “leaders should be guided by discipline, time sense and ethics”. DS RNJ