The election is being held to fill the vacancies created by the retirement of members whose terms expire on July 19.
Satish Chavan is a sitting MLC; he has been renominated for Aurangabad graduate constituency, party sources said.
Sarang Patil is son of Sikkim Governor and former MP Srinivas Patil.
NCP's ally Congress will be contesting Pune teachers, Nagpur graduate and Amravati teachers constituencies in this biennial election to the upper house of state legislature.