Complex sentence: He started the fight against pollution caused by plastics and cleaning activities in 2005 and he used to pick up the plastic garbage, bottles etc. and put them into dustbin at various religious and social places including Mukam fair premises.
Split into simpler sentences: He started the fight against pollution caused by plastics pollutant and started cleaning activities in 2005. He used to pick up the plastic garbage, bottles etc. and put them into dustbin at various religious and social places including Mukam fair premises.