A 54-year-old railway official wasarrested by the Anti Corruption Bureau for allegedly demanding and accepting a bribe of Rs 30,000 in Raipur in Chhattisgarh from a contractor, an official said on Friday.Chief Health Officer Subhashish Sarkar, posted in Raipur railway division, was caught red-handed while accepting the bribe amount from a sanitation contractor, SP (ACB) Manish Sharma said."Sarkar demanded Rs 1.2 lakh in three installments. The ACB laid a trap on Thursday and caught Sarkar accepting Rs 30,000. He has been booked under Prevention of Corruption Act," he added.