An upgrade in in-flight services, including better food and handling of passengers, smartly-groomed cabin crew, and punctuality are on top of the agenda of privatized national carrier Air India's new journey under the Tata Group as it plans to focus on attracting millennials who comprise a major chunk of fliers today.

As the billionaire Mistry clan and the Tata conglomerate head for a bitter split, they are already preparing for their next battle: the value of a stake in Tata Sons, which is at the center of India's biggest corporate feud.