The Indiana State Senate is the upper chamber of the Indiana General Assembly. Alongside the Indiana House of Representatives, it forms the legislative branch of the Indiana state government and works alongside the governor of Indiana to create laws and establish a state budget. Legislative authority and responsibilities of the Indiana State Senate include passing bills on public policy matters, setting levels for state spending, raising and lowering taxes, and voting to uphold or override gubernatorial vetoes.toThe Indiana State Senate meets in the Indiana Statehouse in Indianapolis, Indiana. There are 50 seats in the chamber. One half of the seats are up for election every 2 years. Senators are elected every 4 years.