Government counsel Sanjay Gupta said since the sentence awarded to the cabinet minister was for less than three years, the court released him on bail.
Rakesh Sachan was subsequently granted bail by a Kanpur court of Additional Chief Metropolitan Magistrate.
Police Commissioner BP Jogdand said Assistant Commissioner of Police (Kotwali) Ashok Kumar Singh has been asked to inquire into the charges levelled against the minister.
Three criminals were arrested while one died after Delhi Police retailed in their self-safety during a night search in Yamuna Khadar of the capital on Friday.
Delhi Police gets Lawrence Bishnoi's custody in Arms Act case, to question him again in Sidhu Moose Wala's killing
During interrogation, the arrested criminals had disclosed that the weapons recovered from them were supplied by Lawrence Bishnoi, a senior police official said.
The Kodava community and the Jamma Tenure holders enjoy the exception from Indian Arms Act of 1959 to obtain license to possess and carry firearms.
His wife and children asked him to change his drinking habits but the accused developed a grudge against them.