The maximum number of elected members of Rajya Sabha is 238, which is option 2. Rajya Sabha is the upper house of the Parliament of India. It consists of members who are elected by the members of State Legislative Assemblies. The total number of elected members of Rajya Sabha is determined by the Constitution of India, and it is based on the population of the respective states. Currently, there are 245 elected members of Rajya Sabha, out of which 238 members are elected by the state legislators, and the remaining 7 members are nominated by the President of India. Therefore, option 3 (245) is incorrect. Option 1 (250) and option 4 (248) are also incorrect.