This kashmIrI / pahADi style painting depicts a very rare form of shrIchakra . In contrast with the prevalent geometry of shrIchakra , this form of shrIchakrarAja have single bhupura and three valayas ( which is actual and correct interpretation of ‘vRRittatrayaM’ pada in uddhArashloka of shrIchakra).
dashArayugmamanvashranAgadalasa~Ngata ShoDashAram ।
vRRittatrayaM cha dharaNIsadanamekaM cha
shrIchakrametaduditaM paradevatAyAH ॥
Both paramAnandatantra and vAmakeshvarImata describes this single bhupura and tri-valaya geometry of shrIchakra. In earlier traditions of traipurasaMpradAya this form of shrIchakra was worshiped . Deities in trailokyamohanachakra were very different from the current one , worshiped according to later traditions of traipurasaMpradAya which rely on later shrIkulatantras.
rAjAnaka jayaratha in his gloss on vAmakeshvarImata also describes this form of shrIchakra in following verse.
chakraM baindavamambikAmayam iyaM vAmA trayo ye bhramA jyeShTheyaM yadidaMpurandarapure rekhAchatuShkaM bahiH ।
yoayaM shaktyanalatrikoNanivaho raudrIyamityAmRRishan
yoarchAdhAramakRRitrimaM kalayate mAtaH sa te pUjakaH ॥
Oh goddess ! baindavachakra is thy ambikA shakti form, three circles are vAmA shakti form of thy , bhUpura with four lines is thy form of jyeShThA shakti and triangles in shrIchakra represents thy raudrI shakti form .The person who knows this and meditates on your fourfold form is only your true worshiper.
Lost shrIrasamahodadhi , an earlier text of shrIkrama too supports single bhupura in shrIchakra.
chatuShkoNasamAyuktamevaM syAnmaNDalottamam ॥
shrIbhAskararAya too was aware of this form of shrIchakra. In his setubandhaTIkA he qoutes an verse of unknown origin describing this form.
guNavRRittaM tataH kuryAchchaturasraM cha tadbahiH ॥
Regarding three circles of shrIchakra shrIbhAskararAya in his setubandhaTIkA mentions” In tradition of other saMhitAs and tantras only three circles are discribed not five. “
saMhitAtantrAntarespaShTaM vRRittatritayamevopalabhyate na tat pa~nchakam iti ॥
Regarding bhupur he writes ” Bhupur is square with four gates drawn by single line. As single line bhupur is described in vAmakeshvarImatam.”
bhUgRuhaM nAma chaturasram । tachchaikarekhAtmakamekameva । mUle bhUpUramityekavachanAt ।
naumi shrItripurAmaham ॥