Sinha, Minister of State for Civil Aviation, also said his difference of opinion with his father was "very serious discussion" and that it should not be seen "in a personal way".
"It was absolutely my own conscience... I reject any such charge that I was asked to write the article. I wanted to write the article," he told a television channel, a day after Sinha Sr. kicked up a storm by criticising Finance Minister Arun Jaitley for the economic "mess" in the country in an article in another national English daily.
Today, Jayant offered a stout defence of the government's economic policies in another national daily which many saw as an attempt by the Modi dispensation to have Sinha Sr. cornered by his own son.
"The discussion we are having through newspapers and television is a discussion I have been having with my father for many many weeks and months in the meetings I have with him. He asks difficult and tough questions as he should as somebody who knows the economy well," Jayant said.
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Referring to his son's defence of the government, seen as a counter to his criticism of the Centre's handling of economy, Sinha sought to know why Jayant was shifted from the finance ministry "if he was so competent" to address the concerns raised by him.
Jayant got a lot of stick from his father, who spoke to several TV channels, over his defence of the economic policies of the government.
"If someone has asked him (Jayant) to write the piece, then it is a cheap trick to play...I have not spoken to him (on the issue). Will do it some time to find out (what exactly happened)," Sinha said.
Jayant was shifted out of the finance ministry in July last year.
"It is the prime minister's prerogative to decide (where) is it that you can make the most important contribution. Certainly, at the civil aviation ministry, we have an important set of things to do," Jayant said.