The activists were of the opinion that Mr.Chaplin being a christian will hurt the sentiments of the hindu community residing there.
Heres what The Times Of India has to say:
Hindutva brigands attacking a statue of Charlie Chaplin on the grounds that he was a Christian and having his statue close to a temple was offensive to Hindu sentiments may appear too bizzare to be taken seriously. It is indeed ludicrous. But unless such groups are dealt with summarily and the nuisance nipped in the bud, what seems farcical today could become tragically real tomorrow. The state government must show that it will not allow such lumpen activity to go unpunished. It must crack down hard to deter potential imitators of such trends.