Yes India is the only country currently in the world with both tigers and lions staying in their natural habitats. However they do not share the same territory. In the past there were many forests where they both did share the same area but due to constant hunting by the britishers and local kings their numbers went down at the level of extinction. There was an interesting incident recently in feb 2019 where one tiger returned to the same state within india which is home to only asiatic lion however thats still far away from very location. However due to isolation and starvation the tiger had died.
As per researchers during ancient times lions and tigers did exist in todays pakistan (india subcontinent) , iran, turkey, Transcaucasian countries and southern European Russia.
India is home to asiatic lions in the Gir region within state Gujarat of India. India has the maximum no of tigers caled royal bengal tigers in the world. As per 2015 census there are 523 asiatic lions. Unofficial count confirms that there are 600 lions.
Tiger population had risen from 2,226 in 2014 to 2,967 in 2018. India is now estimated to be home to around 70% of the world's tigers. If estimates are to be believed there were between 1875 and 1925 some 80,000 tigers were killed in India for which britishers were largely responsibile. India also has big no of leapords too while cheetahs went extinct 60-70 yrs back.
Compared to india lion population is estimated to be around 20000 in africa. Tanzania has the most no of lions. Other countries with lion population include Mozambique, Kenya, Zimbabwe, South Africa, Central Republic of Africa, Botswana, Zambia.
Asian lions are slightly smaller than African lions.The male Asiatic lion has a relatively short, sparse and darker mane compared to the fuller mane of the African lion.