Policemen on duty at the bungalow in the administrative area of the town spotted the bicycle near the place where the chief minister would be staying for the night.
The police said the personnel of bomb squad found that the tiffin box contained some food and the owner of the bicycle has not been located.
The police took away the bicycle and have been looking for its owner.
A blast in a moving bicycle suspected to have been carried by militant outfit Kamtapur Liberation Organisation (KLO) killed five people near here in December last year.

I never speak without evidence: Mamata
As the Centre contradicted Amit Shah's claim that Saradha chit fund money was routed to Bangladesh for terror activities, West Bengal Chief Minister Mamata Banerjee hit back at the BJP chief saying "some people think they can say anything they want".
"I never speak without evidence. I know my boundaries. Some people think they can say anything they want, just because a section of the media is supporting them," Banerjee said in an apparent reference to BJP president Amit Shah's claim that Sardah chit fund money was used in the October two Burdwan blast.
Shah told a rally on November 30, "Saradha chit fund money was used in the Burdwan blast. The NIA is not being allowed to probe the blast properly. Hurdles are being created. It is being done in order to save TMC leaders who are involved in the blast."
The chief minister said after inaugurating development projects for north Bengal, "We do not need money of chit funds. We arrested the kingpin of chit fund."
"Catch me if you can... The surge of development will continue. I am a fighter. I will keep fighting. Counter me politically if you can," Banerjee, Trinamool Congress chief, asserted.
"Amake chamkale ami gorjai. Amake dhamkale ami borshai" (I roar if I am threatened. And if anybody tries to browbeat me then I pour out," she said.
"We are working for the betterment of people. People have elected us (to power) and our accountability is before the people," she said.

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