OK Sir. AC has been installed and here is the prognosis for the compressor tripping issue.
1 Ton 12 year old Dawlance AC is now installed in a bigger lounge (reason being it is expected to be used less frequently).
New Copper lineset was installed (not shortened - standard 10 feet).
Last month when AC gas was topped up the AC technician changed its capacitor to 50 uF instead of previous 40 uF capacitor for compressor (the oil filled one silver bottle type capacitor).
Today new 35 uF capacitor was installed and AC started working well after installation. However after around 20 minutes Condensor fan tripped whereas compressor kept working (opposite to previous issue when condensor fan kept working and Compressor tripped).
So this time the fan capacitor (the small 3 pin one) was also replaced earlier it was 3.5 uF and now 3 uF was installed. since it was an old one in the bag of the AC technician so it can be assumed probably its working at 2.5 uF.
Now the issue seems resolved AC kept working fine for almost 1 hour no issues. (cooling is lesser than before - may be coz of bigger room / no vacumming further contamination coz of new copper pipe set).
Wanted to share the details here.
so i checked in the market later too for 1 TON AC the capacitor for compressor value is 35 uF and for its condensor fan the capacitor value is 3 uF.
However i also tried to check the formula for calculating the capacitor value however it returned around 60 uF which seemed in correct.
Thanks to all who guided.