It seems you are a contractor and you want to sub let the work to labour contractor to get the labours on site. If you are a contractor you cannot issue Form V to sub contractor. First of all whether there is a clause in your agreement to permit you to engage sub contractor? If yes, the Principal employer will issue form V to the sub contractor also and sub contractor will take labour licence. If you have engaged 20 or more workers you also need to take licence separately. if there is no clause to engage sub contractor, then whatever labours engaged by you through any labour supplier all these labours are to be covered under your licence and you are liable to pay their wages and welfare amenities.
Form V (Now Form III if your Principal Employer falls in Central Sphere) is issued by Principal in the prescribed format on their letter head no stamp paper is required.