The statistics are by no means comprehensive ; they leave out foreign exchange banks , foreign trading companies , etc . doing only a small part of their business in India , as well as numerous businesses which did not come under the purview of the Indian Companies Act . इनमें विदेश विनिमय बैंक भारत में बहुत व्यापार करती विदेशी व्यापार कंपनियां आदि तथा अनेक व्यापारिक संस्थाएं , जो इंडियन कंपनीज एक़्ट के अंतर्गत नहीं आतीं , छूट जाती हैं .