To travel by bike from Agartala to Kolkata via Dhaka: Visa & Permits: Obtain visas for Bangladesh and India. Check for any required permits for crossing borders with your bike.
Route: Cross from Agartala to Dhaka via the Agartala-Check post, then from Dhaka to Kolkata via the Benapole-Petrapole border.
Bike Preparation: Ensure your bike is in good condition, and carry necessary documents and spare parts.
Insurance: Get travel insurance covering international travel and bike incidents.
Health & Safety: Follow health precautions and local traffic rules. Plan accommodation and fuel stops in advance.