Almirah, I do not know the answer of your question. I have never made a labor permit, but I have my trouble-experience to share.
I had to show my passport to an officer at the airport before boarding into the plane. That was the final check point. The officer was slowly turning the pages in the passport. He spent about 3 minutes to scroll a couple of pages. Then he spoke
Of: tapaiko aru document khoi?
me: kun document?
Of: yo passport tapaiko ho bhanne dekhaune document?
me: passport ma mero photo chha ni, ma yehi chhu ta,
Of: photo herera hudaina, tapai kahan jaana lagya?
me: amerika, naagarikata herna khojnu bhayeko ho?
Of: haina, ke garna jaane amerika? padhna?
me: haina, kaam garna.
Of: work permit chha ta?
me: kasto work permit? (I was surprised by this question)
Of: arkaako deshma tesai kaam garna jaana painchha? work permit chaiyena?
me: working visa ho ni mero, yi yo hernus.
Of: yelle hudaina bhai, work permit paper pani chainchha.
me: (I got little tensed, but controlled myself) tapaile khojeko ke ho maile bujhya chhaina, khulasta bhannus, Hernus, malai kaam dine, talab dine, visa dine tapai hoina, kaam dinele appointment letter diyeko chha, tyo deshle visa pani diyeko chha, tei visa work permit ho, working visa ho haina bhanera immigrationmaa uniharule check garihaalchha, hoina bhane malai firta pathaihalchha, feri tapai work permit khoi bhanera sodhya sodhyei.
Then another officer appeared there.
Of2: ke bho?
Of: kaam garna jaana laagya re, work permit nai chhaina rahechha, pathauna mildaina.
Of2: khai ? (he looked in the visa stamp and turned to me), kun desh jaane?
me: America
Of2: Achel bideshmaa kaam garna jaanalai nepal sarkarko work permit chaincha. visa matra bhayera hudaina. yo niyam thaha chhaina tapailai?
me: kahileko niyam yo?
Of2: Bhayo dherai bhaisakyo, sabailai thaha chha, dedh 2 barsha bhaisakyo, tapai yetro working visa ko stamp lageko passport hune manchhele kasari thaha napayeko?
me: ma 5 barsha dekhi bideshko bideshai chhu, 3 hapta agadi nepal aayeko, yesto naya niyam malai kasari thaha hunchha ta?
Of: bhai tapaiko work permit chhaina rahechha, pathauna mildaina.
me: la thik chha, teso bhaye yo yo karan le pathauna milena bhanera malai chithhi lekhera dinus, tapaiko naam, pad, samparka thegana samet khulne gari yehan ko letterpad ma lekhera dinus.
Of: haina, niyam ko kura ....
me: thik chha, niyam malai laagu hunchha, mero kaam garne thauma kina aauna sakena bhanda malai yo yo karan le airport ma rokyo, yo staffle rokyo, yesto yesto bhayo bhanera spastikaran dinalai pramaan chaiyo ni.
Of: chitthi dina ta mildaina. (arko staff lai herera haasdai ...) airportma rokda pani chitthi chaiyo re, ha ha ...
me: Aba thaha nabhayeko niyam tersyayera rokna painchha?, tyo pani bidesh jaana lageko, plane chhutnu 30 min agadi yesto niyam bhanera hunchha? arko euta staff aaulaa re, kattu lagaayera matra jaan paune niyam chha bhanlaa re, maile patyaune? tapaile niyam chha bhanera bhanepachhi malai tesko praman ta chaiyo. passport 6 mahina agadi renew gareko, visa pani halsalai liyeko ho, kahi katai tyo niyamko jaankari chhaina. Dedh dui barsha agadi aayeko niyam re, yesto visa bhanda mahatwapurna jarury niyam yehi passportmai lekheko bhaye pani hune, ahile ekkasi airportma yesari rokepachhi malai pramaan ta chainchha chainchha, tapai malai tyo niyamko hawalaa diyera roknuhunchha bhane tyo pramaan dine job responsibility pani tapaiko nai ho. Responsibility bata bhagna paunu hunna.
(Then their face changed, The Of2 took the passport and checked from top to bottom. He tried to read everything in the Visa-stamp).
Of2: tapaiko visako chhaap aru bhanda ali farak dekhinchha ta.
me: khoi, malai thaha bhayena, maile hanya hoina, maile aruko visa dekheko pani chhaina.
Of2: yo visa Nepal mai lagaako ho?
me: hoina.
Of2: ye, yo visa Nepal maa lagaako haina re, uhaan laai jaan diye hunchha.
Of: kahan lagaako visa?
me: Belgium
Of: Ani kina yehan bata jaana lagyaa ta?
me: La, aafno desh aauna napaune maile?
Of: Haina haina, utaibata gaye hunthyo bhanyaa ni. Thick chha, tapai jaanus, khaas maa work permit chaine thiyo, haina Sir? (looking to Of2)
Of2: Ho, niyam testai chha, tara bideshma visa laagekolai ke garne hamilai ni thah chhaina, pathaidiye hunchha Aryal jee.
Of: Lau jaanus shuvayatra, next time aauda workpermit paper euta chai banai rakhnus.
In the plane, I learned that people paid 2000 to 3000 to get the letter through brokers. The labor permit rule was put to prevent sending disqualified manpower to countries like Malaysia, Korea, Qatar and other middle east region, but it now has turned to be the milking-cow for the corrupt officers and brokers.