Option (b) is correct.

The National Sample Survey Organization (NSSO), responsible for undertaking detailed employment and education-based surveys in India, was established by the Indian Statistical Institute (ISI).

The Indian Statistical Institute, an autonomous institution under the Ministry of Statistics and Programme Implementation, is responsible for conducting statistical research, training, and survey operations in India. The NSSO, established by the Indian Statistical Institute, is a key agency that conducts large-scale sample surveys to gather data on various socio-economic aspects, including employment and education, to inform policy-making and planning processes in the country.

विकल्प (b) सही है।

राष्ट्रीय नमूना सर्वेक्षण संगठन (NSSO), जो भारत में विस्तृत रोजगार और शिक्षा-आधारित सर्वेक्षण करने के लिए जिम्मेदार है, की स्थापना भारतीय सांख्यिकी संस्थान (ISI) द्वारा की गई थी।