I found this very informative post by Mr. Suresh Jain on Nadi Jyotish on astrodivine website and thought to share with my readers. This post talks about different nadi texts and also gives some clues on further research as follows -
a copy of dhruva nadi may be available with b.v.raman group. you cancontact mrs rajeswari, daughter of late b.v.raman. in thierastrological magzine they had colum called dhruva nadi where they useto write periodically about dhruva nadi.
about saptarishi nadi, is available in chennai museum, which can bexeroxed, it is in tamil in 7 volumes .english version too availablewhich is not complete.
vaidhamadhavam is avilable in mysore library
agatsya nadi can be found in sarasvati mahal of tanzore
sapta rishi nadi if i m not wrong ( which i saw at museum) hashundreds of charts with readings, if ur chart tallys with or nearerto any combination mentioned then that prediction may work to u by 80to 90%. for example mesha lagna has 72 charts.
as a reaserch these charts and predictions may help a lot.bcoz ibelive all nadi granths some where has common link, if we can decodesome ..decoding other gets easier.
as per my limited knowledge i guess working on deva keralam may giveearly success. though dev keralam/chandra kala nadi is not in orderstill it has prediction like for examples if native is born in meshalagna champkam amsha will have particular event in his life atrespective age.or native born in vasudha amsha etcsince devekeralam has its fundamentals hiddens in divisnal charts andcurrently divisinal chart has comparitive good literature available.
there is another nadi available bhrigu nandi nadi written by r.g.raowhich does not have divisinal base but may be a good reaserch stuffbcoz deals with transit. few of its rules (may not all )work verywell are good eye openers. one of them is "karaka transist"
another nadi book is avilable is core of nadi astrology by same authorwhich deals with palmistry too..essence of which is verifying chartwith thumb impression. it divides initially into 12 which in turn aredivided into 108 ..based on 108 navamsha.
with the help of computers we can think of even 1800 finaly 1800*47200 based on varna, 28800 based on tatva and varna and so on in nearfuture ( taking dev keralm as base)
dhurva nadi and devakeralm has lot similarities in them bcoz they arebased on micro divisions which are nothing but micro divisnal chartsas per sjc gurus, deals with higher mental plains, most of signifyingpast karmas,and penalties etc. which can be exellent material forsuggesting remedies copmared to conventional fasting and navagrahashanti.
meena nadi and budha nadi are not strogly based on division but ondasha analysis.they analyzes dasha some time not in accordence withparashari but has enuf for research and fine tuning.
conecpts of yogi avyogi dagdha raasi and unique dasha analysis of sriseshadi iyers has roots in vaidhmadhavam a nadi book available inmysore museum. but some other say it is releted to "shatchalana" ofbudha nadi..there is little contraversy too for taken from someancient muhurta shastra.
meena nadi give importence to deha lord( any bhava lord) and "jeeva"lord ( stellar lord) and any afliction in transit to deha lord orjeeva lord has triggering events.
there are few nadi grantha available which deals with prashna andsingle prashna can predict life time results of entire dynasty orcomunity. i had met one such person long bac whu had predicted withprasha that due to some curse all "females" in dynasty will have lotsof grief. it happened after 8 years...2 of them lost thier husbandand another one do not progeny due to medical complication. he hadpredicted these before thier marriage and i had felt he just wants tosnatch some money as remedial measures.
most popular prsahna nadi is " suka nadi" suka here is refred toparrot in sanskrit if i m not wrong.there is another nadi calledsukha nadi different from suka nadi ..can say of no use.
popular lal kitab has hidden roots in some north indian nadi,conceptslike " bali" ghaat" takkar" sounds strange but has lead.
"raavan samhita" written by ravana as per mythology has a mixture ofall but quite easy to understand compared to nadi grantha has somefine clues of predictions. aurvedic remedial measure mentined inravana samhita has uniqueness.
ravana was greatest astrologer of his time, he was aware of hiddensecrets,power and validity of planatory infuences that why at thetime of birth of "meghanatha" he by power captured all 9 planets andforcefully made all of them to be in lagna bhava against nature suchthat his son be greatest of all chakravortis and be imortal, wellthat was another story due to sweating of shani caused by closenessto sun gave birth to maandi, neglected by ravana which sliped into2nd bhava ..causing a powefull arista yoga sufficients for earlydealth of meghanatha..fact being placemnt of mandi in any bhav is notbad but maandi in 2nd aspecting 8th house of longivity definately mayreduce longivity.
there few books written by bepin beharji, which are actually notancient but are gems. in one of his book he describes pattern ofhoroscope very well,may be away from conventinal astrology but hasgood triggers for reaserch minded people and some base for nadiastrology decoding.
word nadi looks attractive technically may mean some "sookshma"but one of my early teacher had said in south india "naadi" word istermed for "samhita" in north india.
some rare nadi can be found in "tanzore" museum or in sarasvati mahal
nadi grantha which i came acroos, was able to hear from others, justmentioning below
devkeralam, dhruva, agatsya,(shiva) kaak bhujanga, guru naadi,budhanaadi,which makes me to think there may be 9 other like surya nadi,(suryakanal chakra is it derived from surya nadi??)chandra nadi( maybe devakeralam) shani nadi etc meena nadi ( likewise theremay bemesha vrishabha etc 12 nadis) kapila nadi,vashista nadi, suka nadisukha nadi, saptarishi nadi, pushya nadi.
i have truely no idea about kapila nadi vashista nadi and pushya nadi.
anyway ragunathji, my intenstions are not to deviate u from urresearch subject but to paass on just few information.