New Delhi, June 25 (IANS): Businessman Robert Vadra has attacked BJP parliamentarian Subramanian Swamy, calling him an "attention seeker" and a "classist" for his comment that ministers who wear a coat and tie look like waiters.

In a Faceboook post, Vadra, the son-in-law of Congress President Sonia Gandhi, said: "So is there no dignity in being a Waiter?"

"The attention seeking BJP MP Swamy's comment "Ministers who wear a coat and tie "look like waiters" and must be instructed to wear Indian clothes. Undermining waiters who work hard for a living; making condescending and derogatory remarks about them is deplorable and classist...," Vadra said.

In a tweet on Friday, Swamy urged the BJP leadership to ask ministers to wear "traditional and modernised" Indian clothes when they go abroad.

"BJP should direct our ministers to wear traditional and modernised Indian clothes while abroad. In coat and tie they look like waiters," he wrote in a post that was apparently aimed at Finance Minister Arun Jaitley.

Jaitley is in China currently, and has been shown in TV clips attired in coat and tie.