District Judge A K Chawla dismissed the plea of the man, who had also faced trial for burning his wife to death in 2004 but was eventually held guilty only of subjecting her to cruelty.
The court held that the 10-year-old boy should continue to be in the custody of his maternal grandparents with whom he has been residing since his mother's death in April 2004.
"It shall not be in the welfare of the minor, if the custody of the minor is handed over to the petitioner, though, he is the natural father," the judge said.
The court denied him custody noting that he neither made any effort to meet the minor during his confinement in jail nor met him after his release.
"Neither during the period of confinement in jail nor after release, the petitioner...Took any constructive steps either to extend any financial assistance for the minor or even have any visitation right much