Need suggestion on water purifiers

Hello experts,

First of all, let me thank you for the wonderful work you are doing here by providing your expert opinions.

Recently I tried to install purifiers for my borewell…

Rainfall data of Coimbatore district

Rainfall from 1950 to 2002 in Coimbatore district.


Required full detail of solar pump for irrigation in Samastipur Dist. Bihar

Hi Sir,

I would like to know the cost of this pump with the entire material means Solar panel & motor etc. Is there any subsidy from Govt on this project? What will be the cost of the…

Boulders at 450 ft

We recently drilled a borewell (Yelnanka, Bangalore). The total depth of the bore-hole is 1200 ft. we have major source is @ 1100 ft. The yield is ~2".

The borewell driller mentioned that…

Boring blocked by bolders


We made 1180 ft boring in our residence, water was sufficient but at 450 ft the borders are moving and blocking the hole for inserting the pump. Please give us an idea of how to…

TDS of drinking water

What should be the TDS of drinking water and when we need a water purifier? I found a best water purifier…

Problem of rainfall data download

Respected Sir/Madam,

The rainfall data cannot be downloaded from your site. Please fix the problem and provide help to download the data.

Thanks and Regards,

Nur Islam…

Rainfall and temperature data

Need temperature and rainfall data for analysis for the past 20 years


Met Data availability

Respected Sir,

When will the Met Data page start working ? I need to access precipitation regional data of India required for my current research work.


I need AWS and ARG data for the year 2019-2020. 

Borewell water colour change


The colour of the water from my borewell changes to yellow after some time. It was clear when it was pumped into the tank, but after a day the colour changed to yellow. Please help.…

Regarding download of previous landslide data

How can I download the previous landslide data?

Rainfall data Sabarkantha District, Gujarat last 10 years

I want rainfall data of Sabarkantha district, Gujarat last 10 years.

Can we use these images in my youtube video?

Hello Sir, 

My name is Arpitsinh Parmar. I am a YouTuber and I want to make a video on the fog collection system for knowledge purpose. So can you please give permission for using these…

Subject - Inquiry for advertisement of company


Surya International is a manufacturer of water treatment plants, FRP pressure vessels, and other water solutions in India. We want to promote…

Borewell water mixing with sand


In our house, the borewell is 70ft. While water is taken to overhead tank, it is mixing with fine sand and the water becomes black in colour. After sometime, sediments gets settled and…

Water - Dark Black and Foul smell - Intermittently


Drilled Bore in our Apartment - Car Parking Area for a depth of 360 Feet two weeks back.  The drainage Sump is more than 5 feet away. Two days back submersible pump has been laid.…

Data portal down


Will the data portal become available soon? It will be useful for my students' projects at university.

Query regarding borewell

Why we get water at 200ft when we dig at one place and other at 800ft?

Performance requirement

What is the performance requirement for a water purifier ?