Raja is among the 15 candidates in the fray for the Jamshedpur seat in the ensuing parliamentary poll slated for April 17.
In a letter to the Returning Officer-cum-Deputy Commissioner of the district here, Dr. Amitabh Kaushal, Raja said he did not face any threat from any quarter despite being in the social field for over a decade.
Raja said he had visited remote parts of the state on his motorcycle but never faced any problem on security front during the last 12 years as social activists.
Raja said, however, he was ready to honour the offer, if it was mandatory as per the electoral process, he added.