devilish

in a playfully devilish manner; "the socialists are further handicapped if they believe that capitalists are not only wicked but also devilishly clever"

sanjay said : बचे सररती होते है ये हमें कोण बताएगा इसे कारनामो से तो पता चलता है की बच्चे सरारती होते है .

It was a devilish plan to plant bombs in shopping centre.