Dear Manisha ,

Yes ,you can take admission in government engineering college having 57 percentage in 12th but you have to good score in entrance test like mostly college take admission is based on JEE (Joint entrance exam ) and admission is based on the this entrance score .So,if you have good score in entrance test and 57 percentage in 12th then dont worry ,you have a chances to take admission in gov college .

Hope it will helpful

thanks