All nationalised banks, insurance companies and post offices remained closed while buses remained off the road. In the wake of strike, schools and colleges also remained closed, officials said.
Attendance in government offices and private companies was thin though shops and business establishments remained open.
Train services were affected in parts of the state with several trains remaining stranded or regulated at different places, North East Frontier Railway spokesman said.
Trains are running but behind schedule, the spokesman added.
Members of the striking trade union bodies took out protest marches in different parts with the state with the police taking about 500 protesters in preventive custody in Guwahati alone.
The striking unions are protesting against 'anti-worker' changes in labour laws like raising foreign investment in sectors like Defense and Railways, rising inflation, unemployment and the Centre's "indifference" to their demand for better wages.