The base is purono kapor, old cloth: layers of worn sari or dhoti, smoothed and basted flat without a frame or hoop. The working stitch is the run or kantha phor, a plain running stitch, worked in rows across the whole ground; it is the rows of running stitch across the layers, not the motifs, that produce the characteristic rippled surface. Thread was traditionally drawn from the coloured borders of the same saris, which is why old kanthas are worked in a limited palette of red, black, blue and yellow. Composition is built from the centre out: the pankhuri or lotus medallion at the middle, corner motifs, a border, and the field filled with figures. Variants use lohori, the wave stitch, and lik or anarasi darning, plus satin, cross and back stitch on later commercial work. The types are named by use — lep and sujni for quilts, baiton for wrapping books, arshilata for a mirror or comb, durjani or thalposh as covers, rumal as a handkerchief.
- কাঁথাKantha
- A quilt made by layering worn cloth and joining it with running stitch; also the stitch and the whole tradition.
- নকশি কাঁথাNakshi kantha
- Patterned kantha. The compound entered general use after Jasimuddin's 1929 poem Nakshi Kanthar Math.
- কাঁথা ফোঁড়Kantha phor / run
- The plain running stitch that is the whole basis of the craft; the rows of it produce the characteristic rippled surface.
- লহরিLohori
- The wave stitch, worked in undulating lines, one of the named variant fills used alongside plain running stitch.
- সুজনি / লেপSujni / lep
- Kantha types named by use: the spread or bedcover, and the thicker padded quilt.
- আরশিলতাArshilata
- A narrow kantha envelope for a mirror or comb; one of the small domestic forms now rarely made.
- বৈঠনBaiton
- A square kantha for wrapping books or valuables, usually with an elaborate lotus at the centre.
- কলকাKalka
- The paisley or mango motif, one of the standard elements alongside the lotus, the tree of life, fish and the sun and moon.