As the most of Muslim sultans, Delhi sultans had been loyal to the Abbasid caliphate for being legitimate. Symbolic acts such as minting caliphs name on the coins and bringing caliphs name in the sermon by most Delhi sultans that their official religion was Hanafi reveals the fact that they theoretically were faithful to the caliphate system. Some of these sultans according to the political conditions in their time and to excel upon their rivals and attract support the Indian subcontinents Muslims that were mostly Hanafi or Shafei, established relation with the Abbasid caliphate of Baghdad and Cairo and received the permission of ruling from them. In this article, the relationship between the sultans and Abbasid caliphs of Bagdad and Cairo and their motivations and reasons for the establishment of these relations have been studied.

Cultural, economic and social relationships between Iran and India were more expanded during Delhi Sultanate. So that, Iranian's influence over Delhi Sultanate territory increased to a great extent in various fields such as politics, culture, economy, and administration. Turkish servants, as the founders of Delhi Sultanate, were proud of their presence of Ghaznavid and Ghori reigns and were familiar with the Persian administrative system before Delhi's declaration of independence. Persian bureaucrats emigrated from Iran and Transoxania to Delhi and involved in official and administrative duties. As a result, during Delhi Sultanate, administrative system was significantly affected by Persian and Islamic traditions which then mixed with the native and local customs and traditions of India. This article deals with the influence of Iranian bureaucracy on administrative system of Delhi Sultanate.

The issue of pollution in urban cities is a major problem these days especially in cities like the New Delhi is detected with more number of toxic gases in air, which has deduced the air quality of New Delhi. Thus, predictive analytics play a significant role in predicting the future instances of air quality based on the historical data. Forecasting the air quality of these cities is mandatory to overcome its consequences. Several machines learning algorithm is widely used these days to predict the future instances. Such as random forest, support vector machine, regression, classification, and so on. Main pollutants which present in the air are PM2. 5, PM10, CO, NO2, SO2 and O3. In this paper we have focused mainly on data set of New Delhi for predicting ambient air pollution and quality using several machines learning algorithm.