According to the Mumbai police's crime branch, the accused Vikas Yadav (19) had called the office of Jet Airways here last year and threatened that he will be hijacking a Bangalore-bound plane to get Kasab -- arrested during 26/11 terror attack and executed last year -- released from the jail.
Yadav was arrested from Vapi in Gujarat in January 2013. The police seized five mobiles and five sim cards from him.
The prosecution relied on the call data records of the accused to prove the case.
Judge S G Dige convicted Yadav and sentenced him to 15 months' imprisonment and also imposed a fine of Rs 1,000 on him.
