 कच्चिदष्टादशान्येषु स्वपक्षे दश पञ्च च।त्रिभिस्त्रिभिरविज्ञातैर्वेत्सि तीर्थानि चारकैः।। 
 I hope you collect information of their secret efforts intelligently through unrecognisable spies with three of them closely watching each of the eighteen officials there are eighteen categories of officials in a kingdom of the enemys side and fifteen officials on your side. 