An injunction is a legal and equitable remedy in the form of a special court order that compels a party to do or refrain from specific acts.It is often granted when monetary damages are not sufficient to remedy a given situation.
Preliminary injunctions are given before trial. Because they are issued at an early stage, before the court has heard the evidence and made a decision in the case, they are more rarely given. The requirements for a preliminary injunction tend to be the same as for a permanent injunction, with the additional requirement that the party asking for the injunction is likely to succeed on the merits.
Permanent injunctions are issued after trial. It is a final order of a court that a person or entity refrain from certain activities permanently or take certain action until completed .It can be granted under section 38 under special relief act and can be granted only a person who has actual possession of property.