1984 Batticaloa Jailbreak, was carried out by Ramalingam Paramadeva of Tamil Tigers to release a female political inmate who was left behind in the 1983 Batticaloa Jailbreak, this incident happened on 10 June 1984. Paramadeva and his men dressed in prison guard uniform, fooled & overpowered the guards and released the inmate.
References
1984 Batticaloa Jailbreak Wikipedia(Text) CC BY-SA