Hi! My sister's age is 48 yrs and she is suffering from c. spondylysis and recently few days back she felt acute pain in her abodiman in left side which was coming from back side and after test the report is urea 61, uric acid 6.8, creatinine 1.57 and plate count 130000

Please advise

Also advise diet for treatment of the same

For the uric acid she wants to eat a lot of green vegetables especially asparagus, high fiber, and eat and drink loads of cherry. Buy organic cherry juices.
Cut way back on meat and gravy.

I'd be more concerned about the creatinine rather than the urea (usually reported as BUN-blood urea nitrogen). Diets high in protein (meats) can raise all those lab values. The problem does not lie within those numbers, but the patient's kidneys appear to be functioning at less than 50% of what they should. In older days, people with bad kidneys were advised to eat less meat to decrease those abnormal lab values. However, as it turned out, that didn't really help people. It caused malnutrition in some.
I guess my short answer is: Figure out why the kidneys aren't doing their job. Don't try to correct those numbers by dieting. That doesn't really help the person. It just makes the numbers look better.

Yeah when you cut back on meat you need to compensate with other foods for the nutrients.
Yes OP has to get to the root of the problem.
I do believe that eating healthy and what is right for your condition does help a great deal though.
I believe in going to alternative medicine doctors because a good one WILL get to the root of the problem.

The altern. Doctors that I know say that you do not need to eat meat any bigger than the size of a deck of cards.