Months before he jumped into the Lok Sabha chamber with a smoke colour canister in hand, Manoranjan D from Mysuru found a key gap in parliament's security apparatus that he and his associate, Sagar Sharma, exploited to create chaos in the House yesterday. According to police sources, Manoranjan has revealed during questioning that he attended proceedings during Budget session in the old parliament building. This was a recce visit to understand the security checks in place. During this visit, he found that while visitors to parliament are frisked multiple times, their shoes are not checked.