Once the license expires, if renewal application has been filed at least 60 days in advance, the license is deemed to be renewed. In Maharashtra, with the new amendment, licenses are deemed to be renewed in 7 days of online application.
In all other cases, the license actually expires.
The principal employer should immediately stop using contract labour from that contractor. If that does not happen, the courts can presume that the contract was a sham, since you have continued their deploy contract labour even though the contractor no longer has a license.