Character Relationship Map: Vallavan Oruvan

Characters

• Susi (played by Sheela) — supporting

  One of Shankar's personal assistants and secretly a member of the criminal gang. Susi passes information about the investigation to the gang and separately tries to seduce Shankar, but fails. Her betr...

• I.G (played by K.K. Soundar) — supporting
• Rajini (played by Vijayalalitha) — supporting

  One of Shankar's personal assistants and secretly a member of the criminal gang. Rajini passes information about the investigation to the gang and separately tries to seduce Shankar, but fails. This b...

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Rajini → I.G (Professional Subordinate) — Rajini is professionally bound to the chain of command initiated by the I.G.
• Susi → I.G (Professional Subordinate) — Susi functions as a junior staff member under the departmental authority of the I.G.
• Susi → Rajini (Professional Co-Assistants) — Susi and Rajini serve together as administrative and field assistants within the CID department.

Story Analysis

A CID investigation uncovers a weapons-smuggling network and culminates in the destruction of its hidden factory.

Plot Progression

1. Weapons Beneath Madras — A criminal gang manufactures explosives and firearms while disrupting law and order. The first investigating officer is killed at a factory, forcing a new investigation.
2. Clues Under Threat — The new investigation faces surveillance and repeated assassination attempts. Evidence about diverted sulphur emerges, but the office head is murdered before completing his report.
3. The Hidden Betrayal — Susi and Rajini are exposed as gang members who pass investigative information and attempt to seduce the investigator. A drugging plan instead becomes an opportunity to reverse the interrogation.
4. Following the Sulphur — The gang's production system and terrorist customers are revealed. The investigator traces the diverted sulphur shipment to the concealed weapons factory.
5. Fire at the Weapons Factory — Black Cat is unmasked at the factory, where the final fight takes place. Black Cat is killed, the factory burns, and the investigator's group escapes safely.