The Centre [national government] has asked states and Union Territories to initiate legal or administrative action against private institutions which are offering packages for COVID-19 vaccination in collaboration with hotels, noting that this is in violation of prescribed guidelines.

In a letter to all states and UTs, Additional Secretary to the health ministry, Manohar Agnani, said it has come to the notice of the ministry that some private hospitals have been offering vaccination packages with hotels, against the guidelines issued for the National COVID-19 Vaccination Programme.

Here is more from The Wire, via Rama.  Obviously running vaccines through hotels adds explicit pricing and tends to allocate more vaccines to the wealthy (on average the relatively productive), and to boost total vaccine supply.  So economists will see more merit in this idea than the Indian government does.