Sukh Ram's counsel Pawan Narang said he would go through the judgement passed today by Special CBI Judge R P Pandey, who has also imposed a fine of Rs four lakh on the veteran leader.
"We will challenge this order in the Delhi High Court next week," he said.
The 86-year-old leader, who had been free despite being convicted in two corruption cases, was today arrested and taken to Tihar jail.
Sukh Ram, who held Telecom portfolio in the P V Narasimha Rao's cabinet and was convicted on Thursday in a cable contract case for taking Rs 3 lakh as bribe, was handed out five years' jail term by the Special Judge.
Besides the present case, Sukh Ram was awarded a three-year jail term in 2002 in a case lodged under the Prevention of Corruption Act relating to equipment supply that resulted in a loss of Rs 1.66 crore to the state exchequer.
He was also convicted and sentenced to three years in jail in 2009 for possessing disproportionate assets worth Rs 4.25 crore.
Both the cases are pending in the Delhi High Court.
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