Union Minister for Information Technology Ravi Shankar Prasad on Friday said Twitter denied him access to his account for almost an hour today over complaints that he violated copyright law by posting clips from television debates. Mr Prasad's run-in with Twitter comes amid its months-long clash with the BJP-led government at the centre over issues ranging from requests to take down tweets supporting the farmers' protest, discrediting posts by leaders of the BJP and more recently new regulation.