HI,

YES the sections for both are similar i.e both exam has three section and the time limit is 120 min for both 

 1      Quantitative & Numerical ability

2 Reasoning & General Intelligence

3 Proficiency in English Language

the only difference is number of question for each section varies 

for nmims each section has 40 questions and nmat has Language Skills 32questions ,Quantitative Skills  48Q,Logical Reasoning 40Q

GOOD LUCK