Air India is in talks to lease about 400,000 sq ft of office space at Vatika’s office complex in Gurugram, three people aware of the deal said. The erstwhile national airline now owned by the Tata Group has already signed a letter of intent (LoI) for about 200,000 sq ft with the option of doubling the space later, they said. The airline will shift all offices to this building, one of them said. Other Tata airlines – Vistara and AirAsia – may also shift to the same complex later.