how to predict longevity using vedic cast horoscope ?

I could not understand what you meant by "vedic cast horoscope". From my reading and dealings in those subjects I found that the Vedas and the Upanishads did nowhere deal with the methods for casting horoscopes and about predictions for human life and destiny. I rather found that the Vedas and the Upanishads condemned such faith stating that it takes a man to the darkest regions of ignorance. The other Hindu scripture like Srimad Bhagbat Gita and Sri Sri Chandi also did not deal on the subject

I told you what I know on the basis of my studies and knowledge..

Marina Rowena Daphne Flora Clara Felicia Odelia Meara Petra Isadora Nuala Loretta Alina Iris Leona Orla Vivienne Ada Luna Eliza

very simple.

Study 6th,8th and 1st house.these three houses should not be related to each other.

Rahu in 1st house is bad for good life but lord of 1st house should in 6th or 12th house.

The longevity is predicted in the following manner. You will only understand it if you know the technical terms.

A. Look at the lord of 1st and lord of 8th .

(i)If both are in movable signs or one of them in fixed and the other in common sign: long life.

(ii) If both are in common signs or one of them in movable and the other in fixed sign: Medium life.

(iii) If both are in fixed signs or one of them in movable and the other in common sign : Short life.

B. Look to the sign tenanted by Saturn and the sign tenanted by Moon.

(i) If both are in movable signs or one of them in fixed and the other in common sign: long life.

(ii) If both are in common signs or one of them in movable and the other in fixed sign: Medium life.

(iii) If both are in fixed signs or one of them in movable and the other in common sign : Short.

C. Look to the sign on the cusp of the ascendant and also the sign in which the Hora-Lagna falls.

(i) If both are in movable signs or one of them in fixed and the other in common sign: long life

(ii) If both are in common signs or one of them in movable and the other in fixed sign: Medium life.

(iii) If both are in fixed signs or one of them in movable and the other in common sign : Short

The same inference arrived at by any two of the above method is taken as the resultant inference. If all the three are different then inference drawn from C is taken as the resultant life span.

Short life is up tp 36 years. Medium is from 37 to 72 years. Long life is beyond 72 years. When the dasa of Markesh comes during the span so calculated, there comes the end of life.

It also depends on the way of life one is pursuing.