Though wiki is not all that reliable...but I think in this case its correct:
"The Mahabharata Tribe - Malika (????) They are mentioned in the Geography of Mahabharata (VI.10.65) The Mahabharata Tribe - Malika (????) may be identified with Jat Gotra - Malik (????) They are mentioned in the Markandeya Purana as people of the Central region of India. [1] The Gathwala are now designating themselves as Maliks, which is a title. [1] mahabharat ka vansis malik jaat hai.
Malik is the largest clan of jat (Hindu) in North India(Haryana,Uttar Pardesh,Madhya Pardesh,Punjab,Rajasthan,Delhi).This area is well known as GATHWALA-KHAP. There are more than 760 villages of the Malik clan in Haryana and Uttar Pradesh.
There are also several villages of the Gathwala Malik in Okara District of Pakistan. Almost all them orignate from Sonepat. 'Gathwala' means 'people of organisation'. They are known for their brotherhood."