New Delhi, Sep 19 (IANS): The BJP on Saturday slammed Congress vice president Rahul Gandhi for taking potshots at Prime Minister Narendra Modi and dubbed as "immature" his speech in Bihar's Champaran.

"Mr. Rahul Gandhi needs a new script writer as his speeches have become stale. It was an extremely immature speech," BJP spokesperson M.J. Akbar told IANS.

"At one point of time during his speech, Mr. Gandhi said that you can't take economic decisions in the company of such people who who wear costly watches and keep costly pens. He may not understand the value of a pen but a mature man does," he added.

Akbar questioned the absence of Bihar Chief Minister and Janata Dal-United leader Nitish Kumar and Rashtriya Janata Dal chief Lalu Prasad from the Champaran rally.

"It is now clear why seniors like Nitish Kumar and Lalu Prasad did not share the dais with him," he said.

Taking potshots at Modi over his poll promises without taking his name, Gandhi on Saturday called him a "feku". Loosely translated, the Hindi word "feku" means someone who bluffs.

"He had promised two lakh jobs, promised Rs.15 lakh in each of your accounts, to control inflation. One year of the Modi government has gone. Did it happen? Has anyone got Rs.15 lakh? Has inflation been controlled? Has anyone got employment? Feku tha, hai," the Congress vice president said without taking Modi's name.