Complex sentence: This regional office has almost all the major Departments of Reserve Bank of India except Foreign Exchange Department (FED) and Department of Economic Analysis and Policy (DEAP) which are housed at the Bank's sub-office at Kochi.
Split into simpler sentences: This regional office contains nearly all of the major Departments of Reserve Bank of India. The only exceptions are the Foreign Exchange Department (FED), and the Department of Economic Analysis and Policy (DEAP), both of which are which are housed at the Bank's sub-office at Kochi.