This MRCP report is normal. It is possible that both reports are correct, and that there was some inflammation of gall bladder in December (such as dengue) which has now resolved. At any rate, MRCP is a more sensitive and less operator dependant investigation than USG.
Next Steps
Please visit a general surgeon or gastroenterologist who can interpret both reports in the context of clinical findings
Health Tips
Please understand that reports cannot be interpreted in isolation, a doctor requires the clinical context including an examination to interpret the findings accurately