Here are a few ways to rewrite the title in a formal tone, depending on your focus:
Option 1 (Direct and Formal):
CPN (UML) Secretary Mahesh Basnet Alleges State-Orchestrated Disinformation Campaign Targeting Party Leadership
Option 2 (Journalistic/Standard):
Mahesh Basnet Accuses Government of Coordinating Smear Campaign Against CPN (UML) Leadership
Option 3 (Concise/Professional):
Allegations of State-Sourced Disinformation Campaign Leveled by CPN (UML) Official Mahesh Basnet
Recommendation:
Option 1 is the most precise and formal, as it maintains the full context while using professional terminology like “orchestrated” and “disinformation.”