keen as mustard meaning in Hindi

Examples

1. They are as keen as mustard.
2. In his late 60s at the start of WWII, he was keen as mustard for a second round with the Germans.
3. Bridget Goodwin, an associate professor at Bond University, says in her book " Keen As Mustard " that about 2, 000 Australian soldiers were used for secret research in experiments run by British chemical warfare scientists with American involvement.
4. Colman's claim the expression " as keen as mustard " derives from the Keen family and the secret ingredient ( Some information on Unilever's Colman's page ] ), although some English language experts believe that the phrase predates this.