Hey konkantrip, jarpickle and vu2gte Thanks for your inputs.
1> Konkantrip why did you asked abou car jumping on pot holes with full load..? will it make such big difference or damages to any drums ? I can understand that it will put tons of extra load on rear wheels and other parts but didn't understood relation between drums and car jumping with full load (7-8 people) . Please elaborate . 2>
As of now brake related issue is resolved by Navnit Motors Thane .
Diagnostic and Repairs :-
Brake failure in Rear Drum was due to some tiny stones came in between brake pads and Drum (Now i dont understand stone or any outside particle entering into Drums . I thought they are sealed properly ,never heard such things happening .) . Left Side Drum was working perfect , they performed brake bleeding and cleaning on both drums/ disks, topped up brake oil .
We took good 12kms of test drive in which we tested brakes in following speeds 20-0kmph - 40-0kmph, 80-0kmph , 85-0kmph . All this was away from highway/busy streets and i made sure no one is behind us while doing test . All went fine and brake felt all ok to me . ABS
was kicked in 2-3 times as i jammed brakes instead of progressive braking .
Once Again Thank You every one .