it is immaterial whether he got in cash or in kind, as faras the law is concerned ,illgetimate son has share in fathers earnings, your second phara stats ur father had already made settlement to his second wife, that is available in writing, correct me if am wrong, in that case when it was done, and ,if at all ur father had not done any settlement ,the best thing u can go to banglore and have a negotiation with the second wife and go for a settlement ,this is the only way out. engage a good lawyer he can get the things done. i dont think 125 crpc can be transferred to chennai.since she has come to court it is the best thing to get things completed in court itself, so that they cannot go for further claims.