When Lakshmi Sundar brought a malnourished stray puppy into her home in the Indian city of Chennai, she thought the brown-and-white bundle of energy would be a guest for just a few weeks.Her household is one of a growing number across India to have adopted a dog to cope with the loneliness inflicted by the pandemic.“We bonded so well from day one, which is very rare … I don’t bond that easily with anyone,” Sundar, a 53-year-old who treats diabetes patients, said of the pup, named Meenakshi…