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Over the last four decades – the 1980s, 1990s, 2000s and 2010s – the share of manufacturing in gross domestic product (at current prices) in India has stagnated, whereas the share of services (construction excluded) has increased significantly. The relatively mediocre growth performance of the manufacturing sector as compared to the services sector in India has emerged as a matter of concern. There has been growing recognition in policymaking circles and academia that India needs accelerated growth in the manufacturing industry in the next few decades, so that India's economic growth is led by manufacturing rather than services. In this paper, a comparative analysis of the growth in total factor productivity (TFP) of formal and informal segments of 10 groups of Indian manufacturing industries is undertaken, which is calculated based on KLEMS data obtained from National Accounts Statistics (NAS), published annually by the Central Statistics Office (CSO) of India. The period covered for the analysis of TFP growth is 1980–1981 to 2019–2020, which is broken into four sub-periods. Year wise total factor productivity growth (TFPG) of different industries for the sample period shows a fluctuating growth rate, which includes both positive and negative trends. Decade wise growth and overall TFPG of the different industries also indicate an oscillating pattern, that is, a mix of positive and negative TFPG. The minimum overall TFPG is observed in the coke, refined petroleum products and nuclear fuel industries, and the maximum in electrical and optical equipment for the period 1981–2020.

Despite the fact that hygiene and sanitation are becoming more critical for improving the present situation in developing nations, the factors that affect them are not well covered in the present research. This paper investigates the quality of the hygiene and sanitization factors and identifies the interrelations between the identified factors.

A graph theory-based approach is proposed to assess the factors influencing the practice, and a critical service index (CSI) is used to quantify the same.

Two Indian villages are used to illustrate the implementation of the suggested approach. This represents the validation of the suggested method, as well as assisting in the development of essential suggestions for increasing the quality of hygiene and sanitization in the Indian context. In spite of the increasing importance of hygiene and sanitation for improving the current situation in developing countries, the factors that influence them are not well-researched.

This study contributes in two ways. First, it provides an organized methodology for quantifying hygiene and sanitation factors and a critical service index that incorporates the findings. The suggested approach may also be used to evaluate and classify other sectors. Second, it shows how the methodology was used to create key recommendations for two Indian villages, which may be considered the first effort in India’s hygiene and sanitation initiatives.

This research discussed improvements in sanitation and hygiene habits among Indian households, which have not been achieved as expected under the Swachh Bharat Mission.