Maria Tam Wai-chu, a member of the NPC Standing Committee Basic Law Committee from Hong Kong, said society should accept the reform package.
If the plan is not adopted, Hong Kong's next chief executive could be elected by a 1,200-member election committee, which is not what most people want, Tam said.
According to Lam, the SAR government received more than 130,000 written submissions from different organizations and individuals during a two-month public consultation that ended in March.
A number of public opinion polls conducted by various organizations in Hong Kong this month showed that around 60 percent of Hong Kong citizens agreed to realize universal suffrage based on the Basic Law and the top legislature's Aug. 31 decision.
However, a handful of HKSAR legislators are threatening to veto the plan, which will be put for a vote at the LegCo in June.
Cheung Chi-kong, executive director of the Hong Kong-based One Country Two Systems Research Institute, said that Hong Kong will miss a valuable opportunity if the plan fails due to a "political soap opera".
Qiang Shigong, executive director of the Hong Kong and Macao Studies Center under Peking University, said the reform plan has given proper consideration to public opinion and the region's democratic needs under the rule of law framework.
If the plan fails to pass at the LegCo, democratic development in Hong Kong will be held back, and that will also pose challenges for the region's economic and social development, Qiang said.
Zhang Dinghuai, a professor at the Center for Basic Laws of Hong Kong and Macao Special Administrative Regions under Shenzhen University, called on people and parties concerned to carefully weigh public opinion and Hong Kong's long-term welfare to make the right decision, as confrontation will harm the region's development.
"Those who vowed to reject the plan are turning a deaf ear to the mainstream public voice. Instead of promoting democracy, they are practically jeopardizing the region's historic opportunity for democratic progress," Zhang said.
According to Lam, if Hong Kong can realize universal suffrage in the 2017 election, the next chief executive and the SAR government will have the political mandate required to further promote constitutional development, including the goal of electing all LegCo members by universal suffrage.
