The incident happened yesterday and the tuition teacher, Jitendra, was arrested following a complaint by the boy's parents, they added.
The accused had lured the boy into staying beyond the class hours promising him to teach 'Tantrik Vidya' (black magic) and offered him the spiked soft-drink, police said.
The boy told his parents about the incident after they scolded him for coming home late, they said.
A case has been registered under relevant sections of the IPC and provisions of the Protection of Children from Sexual Offences (POCSO) Act.
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