<P> These dances are composed mostly on locally made instruments . Percussion instruments feature in most of these dances . Music is produced through indigenous instruments . Music too has its own diversity in these tribal dances with the aesthetics ranging from mild and soothing to strong and weighted rhythms . A few of them also have songs, either sung by themselves or by onlookers . The costumes vary from traditional saris of a particular pattern to skirts and blouses with mirror work for women and corresponding dhotis and upper - wear for men . They celebrate contemporary events, victories and are often performed as a mode of appeasing the tribal deities . </P> <P> A lot of the dance styles depend upon the regional positioning of the ethnic group . Factors as small as east or west of a river result in a change of dance form even though the over-reaching look of it may seem the same . The religious affiliation affects the content of the songs and hence the actions in a dance sequence . Another major factor affecting their content are the festivals, mostly harvest . </P> <P> For example, the ethnic groups from the plain land rabhas from the hilly forested areas of Assam make use of baroyat (plate - like instrument), handa (a type of sword), boushi (adze - like instrument), boumshi (bamboo flute), sum (heavy wooden instrument), dhansi . kalbansi, kalhurang, chingbakak . Traditionally, their dances are called basili . Through their dance, they express their labours, rejoicings and sorrows . Handur Basu their pseudo-war dance expresses their strength and solidarity . </P> <P> From a broader point of view, the different tribal dance forms, as they would be classified in the context of territory are: </P>

Which of these is a folk dance form that originate in maharashtra