India’s Cabinet of Ministers gave its approval for partial abolition of the 5/20 rule, which will enable new carriers like Vistara and Air Asia to start international operations sooner.
The new Civil Aviation Policy released by the ministry on 15 June 2016 decided to overturn a requirement that mandated airlines to have five years of domestic operations to be eligible to fly overseas.
However, an airline would have to allocate 20 aircrafts or 20% of its total fleet, whichever is higher, to domestic operations in India if they wished to fly overseas. This effectively means a carrier must have a minimum of 20 aircrafts in its domestic fleet.
Source: Business Standard