بسم الله الرحمن الرحيم
According to Shariah, the prevalent Quran khawani in which the feast is arranged and the reciters of the Holy Quran are paid is unlawful. For isal-e-sawab, it is not necessary to invite people, it may be done individually.
Allah knows Best!
Darul Uloom Deoband
This answer was collected from the official ifta website of Darul Uloom Deoband in India.