can i extend my doubel entry tourist visa in immigration office twice after each 60 days??

pls help

Twice total but once after each entry for 60 days. And both entries must be made while visa is valid.

they will extend my visa twice for 30 days wright?

You get 30 days extension.

After that you must leave the country and re-enter to activate your second entry.

Second entry can then be extended by 30 days.

Check the validity in your visa.

The second entry must be activated before the visa expires.

They will normally extend a tourist visa entry 30 days (not the visa) so if you have a two entry visa each entry can be extended 30 days. The thing to be aware of is that the visa is valid for a specific time from date of issue (marked as use before date) so all entries must be made during that time period.