The AQI computational methodology used in India can be found on CPB website. You can use that to calculate daily AQI in excel and then proceed to apply different methods for AQI prediction/ forecast.
The data available by this link is monthly AQI. But i am looking for different air pollutants like SO2, NO2, PM10 , PM2.5 etcetera on daily basis. And temperature, humidity, wind speed and pressure on daily basis in different cities ams states of india.
I think you need to check again. This link provides all the parameters you listed with a time resolution of up to 15 minutes. You can go to the Advanced search section, and you will find all the relevant information.
I got the data what I was looking for but I am not able to download it at once for whole state with cities and monitoring stations. Is there any way to do it? Otherwise I have to do a lot of manual work appending the different chuck of files for the same.