Rajya Sabha's Deputy Leader of Opposition Anand Sharma on Saturday said ruling and opposition parties are like two wheels of a chariot, necessary to run democracy, a statement said.Addressing the valedictory session of the annual session of business chamber Confederation of Indian Industry (CII) here, he also said that legislative scrutiny of the bills is necessary to ensure good policies and good laws, a CII statement said.Illustrating this with the example of the Goods and Service Tax, Sharma said that the reform has become a reality because of the support of the opposition parties.Sharing his views on the theme of the session "Future of Globalisation: Can India Lead?", he said it is important to look at how India was engaging with the world and vice-versa.The former Union Minister also noted that India's reform process has been robust, and has not seen any major reversals in spite of changes in parties.