Air India Ltd. is close to securing 100 billion rupees ($1.1 billion) in financial aid from its owners Tata Sons Pvt. and Singapore Airlines Ltd., according to people familiar with the matter, as the carrier grapples with the fallout from a turbulent year. The money is conditional on reaching certain performance milestones and will be paid out in installments, said the people, who asked not to be named because the matter is private. The support would be proportional to shareholding, the people said, with Tata Sons owning 74.9% of Air India and Singapore Airlines the remainder.