Castor is treated as an important non-edible oil crop among Mahua, Karanja and Jatropha. India occupies a leading position in the production of castor followed by China and Brazil. Castor has been used in various purposes from thousands of years ago which has important characteristics. The main objectives of current work are i) Identification of change point and ii) Trend analysis with respect to area, yield and production of castor for the period from 1961 to 2016 in India. The non-parametric statistical methods such as Pettitt's, Standard Normal Homogeneity (SNH) and Buishand’s Range tests have conceded to detect the mutation point whereas the magnitude of trend is measured and analysed with the help of Sen’s slope estimator and their significance is tested by Mann-Kendall test. The results revealed that the change is identified by mutation point at initially 1988. Interestingly the maximum growth is captured in the second sub-time series on the basis of time scale and area, yield and production. However, the production of castor cannot meet up its annual enormous demand for India.

Dental caries is a widespread chronic disease affecting billions of people worldwide. Dental caries can be an unfavourable sequelae of improper oral hygiene. Dental caries is regarded as mostly the disease of young age. Analysing a trend of dental caries experience and oral hygiene in young people would help in formulating and providing a comprehensive approach in treating this population. This retrospective cross sectional study is done among young adult patients of private dental hospital. Oral hygiene status and dental caries data was collected from patient records between June 2019 to March 2020. Collected data was entered in excel and exported to SPSS version 22 for software analysis. A chi square analysis was done and a p value < 0.05 was considered to be statistically significant. Total records included in the study were 303, belonging to the young adults category.Overall OHIS score among young adults was found to be fair (27%) in the 18-20 years age group,49% fair in the 23-25 years age group. Overall dental caries experience [DMFS,DMFT scores] was found to be 25% fair in the 18-20 years age group ,25% good in the 21-22 years age group, 50% fair in the 23-25 years age group.Within the limitations of current study, overall oral hygiene status was found to be fair and moderate risk of dental caries experience among young adults was seen.