Luggage and behaviour rules
- CMRL asks passengers to keep baggage within 25 kg in weight.
- The size limit it states is 80 cm long, 50 cm wide and 30 cm high.
- Pets are not allowed on trains or inside metro premises.
- Eating and smoking are not allowed in stations and trains.
- Firearms and knives must not be carried.
- Stand on the left side of escalators and move away from them quickly.
- Parking at stations is at the owner's risk.
Source: CMRL: DO'S and DONT'S. Checked on 12 Nov 2026.
Source note: page last updated 10 Nov 2026; checked 12 Nov 2026.
All help topics for Chennai Metro Rail
Source: Chennai Metro Rail, checked on 11 Nov 2026.
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