There seems to be a little confusion. Technical resignation can be with lien or without lien. Lien-DraftKdaDv.PDF
Lien is a facility where you can join new department and within one year , if you wish to return back to your old job in old department, you can do so, by resigning from the new job. The position in your old job will not be filled by any new candidate (it can be temporarily filled with contractual persons) during lien time, giving you the opportunity to come back within one year, if you wish so. Sometimes, lien can be of two years also in special circumstances. The right of lien is available for only permanent employees after confirmation.
However, there can be technical resignation without lien also. Here, after you give technical resignation to join new department , you will not have right to come back to your old job, and your vacant post may be filled up with other candidates permanently. There is no conditionality for confirmation or completion of probation period in this case for technical resignation if lien is not claimed. That's why, in the master circulation, it is clearly written, that even if an employee has applied elsewhere before joining his job, he may give technical resignation, if he had informed of such application while joining(Point number 2). Here he can avail, benefits of past service like pay protection, leave transfer etc , with the only exception that lien will not be available. Here, the condition being, the original application must have been forwarded through proper channel from old employer (Or, the application must be informed if applied before joining job at old employer).