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The outbreak of COVID-19 has now created the largest pandemic and the World health organization (WHO) has declared social distancing as the key precaution to confront such type of infections. Most of the countries have taken protective measures by the nationwide lockdown. The purpose of this study is to understand the effect of lockdown on air pollutants and to analyze pre-monsoon (April and May) cloud-to-ground and inter-cloud lightning activity in relation to air pollutants i.e. suspended Particulate matter (PM 10 ), Nitrogen dioxides (NO 2 ) Sulfur dioxide (SO 2 ), Ozone (O 3 ) and Aerosol concentration (AC) in a polluted tropical urban megacities like Kolkata. After the strict lockdown the pollutants rate has reduced by more than 40% from the pre-lockdown period in the Kolkata megacity. So, decreases of PM 10 , NO 2 , SO 2 , O 3 and AC have a greater effect on cloud lightning flashes in the pre-monsoon period. In the previous year (2019), the pre-monsoon average result shows a strong positive relation between the lightning and air pollutants; PM 10 (R 2 = 0.63), NO 2 (R 2 = 0.63), SO 2 (R 2 = 0.76), O 3 (R 2 = 0.68) and AC (R 2 = 0.83). The association was relatively low during the lock-down period (pre-monsoon 2020) and the R 2 values were 0.62, 0.60, 0.71, 0.64 and 0.80 respectively. Another thing is that the pre-monsoon (2020) lightning strikes decreased by 49.16% compared to the average of previous years (2010 to 2019). The overall study shows that the reduction of surface pollution in the thunderstorm environment is strongly related to the reduction of lightning activity where PM 10 and AC are the key pollutants in the Kolkata megacity.

Purpose In the past decade, the rapid globalisation and modernisation has resulted in an increased focus of organisations on implementation of family friendly work–life balance (WLB) policies for enhancing employee retention. The purpose of this study is to review the importance of WLB policies and programmes and its impact on organisational outcomes. Design/methodology/approach Using Deery’s (2008) framework as the conceptual framework, the current study attempts to provide an integrated literature review of the empirical studies conducted in the area of WLB and employee retention in India for a decade from 2007 till 2017. Findings The analysis of the extant literature revealed that the research on WLB for Indian organisations really surged since 2013. Most of the empirical studies conducted in this area use a positivist paradigm. Numerous industry sectors including the information technology (IT) and business process outsourcing sectors have benefitted from WLB policies, but the banking and higher education sector have generously implemented employee-friendly WLB policies. Practical implications The study stresses upon the implementation of employee friendly WLB policies for achieving high organisational outcomes. Furthermore, the findings may be useful for human resource management and human resource development professionals to understand and appreciate the organisational components, settings that are necessary to facilitate better WLB in Indian organisations, thereby resulting in better organisational outcomes. Originality/value The study provides us with a comprehensive review of different WLB studies conducted in India till date and its possible impact on various organisational outcomes.

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The COVID-19 pandemic forced India as a whole to lockdown from 24 March 2020 to 14 April 2020 (first phase), extended to 3 May 2020 (second phase) and further extended to 17 May 2020 (third phase) and 31 May 2020 (fourth phase) with only some limited relaxation in non-hot spot areas. This lockdown has strictly controlled human activities in the entire India. Although this long lockdown has had a serious impact on the social and economic fronts, it has many positive impacts on environment. During this lockdown phase, a drastic fall in emissions of major pollutants has been observed throughout all the parts of India. Therefore, in this research study we have tried to establish a relationship among the fall in emission of pollutants and their impact on reducing regional temperature. This analysis was tested through the application of Mann–Kendall and Sen’s slope statistical index with air quality index and temperature data for several stations across the country, during the lockdown period. After the analysis, it has been observed that daily emissions of pollutants (PM 10 , PM 2.5 , CO, NO 2 , SO 2 and NH 3 ) decreased by − 1– − 2%, allowing to reduce the average daily temperature by 0.3 °C compared with the year of 2019. Moreover, this lockdown period reduces overall emissions of pollutants by − 51– − 72% on an average and hence decreases the average monthly temperature by 2 °C. The same findings have been found in the four megacities in India, i.e., Delhi, Kolkata, Mumbai and Chennai; the rate of temperature fall in the aforementioned megacities is close to 3 °C, 2.5 °C, 2 °C and 2 °C, respectively. It is a clear indicator that a major change occurs in air quality, and as a result it reduced lower atmospheric temperature due to the effect of lockdown. It is also a clear indicator that a major change in air quality and favorable temperature can be expected if the strict implementations of several pollution management measures have been implemented by the concern authority in the coming years.