I did noticed my bike isn't responding as it should. Constant flutter was going on as it was running rich. Did checked the plug and it was!
Plug was all smeared in dark oily black mess. Did replaced the plug but same happened within 3-4 hrs of installation. Even the current at the plug was nearly invisible (very weak). Bought a multimeter and noted down the readings.

got following reading.
Source Coil - 342ohms (RXG manual says 220ohms with 10% error)
Charging Coil - 1.7ohms (RXG manual says 0.8ohms with 10% error)

Ignition and pickup coil have readings according to the manual.

My doubt is that does RXG and RX135 5 speed uses same coils?
Because I did compared the readings from RXG manual (No access to RX135 5 speed manual to me)
If I have to replace the coils can I opt for 4 speed coils or RXG coils? Can't find 5 speed coils at showroom here as only 2 5 speeds are there in the whole town!!
People around my place are good for nothing so rewinding is not at all an option. Bike currently running on RDD cdi with stock coils/stator plate (just advanced 4 degrees for cdi fitment.)

Any leads would be highly appreciated.