Kolkata, June 12 -- Amid continuing speculation over internal dissent and possible defections within the Trinamool Congress (TMC), which ruled over Bengal for 15 years, senior party leaders on Friday mounted a strong defence of the organisation, with MPs Mahua Moitra and Saugata Roy launching sharp attacks on rebel legislators and parliamentarians reportedly exploring political alternatives.

Krishnanagar MP Mahua Moitra took to social media to challenge what she described as "traitor" TMC lawmakers, asserting that attempts to form a separate bloc within the party had no constitutional basis.

In a strongly worded post, Moitra argued that the provisions allowing a split in a political party had been removed through the 91st Constitutional A...