Isca

I think self study is better

i dont know about any of these. but from my own experience i can tell you to go for self study in ISCA. you will be able to score better. i have cleared isca with 57 marks from self study only...

all the best

Study module or padukas or dinesh madan.

just an advise to read the article at following link for isca 

/forum/how-to-study-isca-and-get-good-marks-few-guidelines--165716.asp

in my views padhuka or module ..... can fetch you very good marks but mind the headache involved.

Check Manish Valechha book on ISCA plus module ..  

study materialmis best                            

Following books are avalable for ISCA. study module, practice manual, padhuka, manish valechha, dinesh madan.

i m having all these books.

Manish Malechha (latest edn,) plus practice manual covers everything..

No need to refer anything else. 

FOR ISCA INSTITUTE BOOKS IS MORE THAN SUFFICIENT .... BUT U HAVE TO MAKE UR OWN NOTES CONTAINING IMPORTANT TERMINOLOGY  FOR EACH TOPIC .. FOR EASY REFERENCE BEFORE THE EXAM DATE, AS IT IS NOT POSSIBLE FOR ANY OWN TO COVER ENTIRE MODULE DURNG EXAMS .... 
 

Joining Swapnil Patni classes is best option it will give you time to study other subjects.....

His teaching style is simply aewsome..... repetative revisions are taken in class along with exams...