Check encroachment using IIMB-RERI ‘raja kaluve’ tracker

Bangalureans need to have the survey number, village, hobli and taluk as found in the registration document to be able to use this portal.

The Real Estate Research Initiative of Indian Institute of Management Bangalore (IIMB-RERI), with support from the Bruhat Bengaluru Mahanagara Palike (BBMP), has launched a web-based portal – to enable Bangaloreans to know if their property is situated on a storm water drain or ‘raja kaluve’. Inaugurating the portal for public use, BBMP Commissioner Manjunatha Prasad, said: “This portal enables people ease of access to find details about storm water drains in one place.” Citizens need to have the survey number, village, hobli and taluk as per the schedule in the registration document to be able to use this portal.

“There is a general fear, fuelled by a lack of information, among citizens on whether their properties encroach important water bodies like ‘raja kaluves’. Through this effort, we hope to alleviate some of those fears by making information easy to access for all,” said Professor Venkatesh Panchapagesan, Head of IIMB-RERI. Currently, information on encroachments are available on government websites. “Information is not easily searchable and encroachment details are often provided only in the text embedded within survey drawings released by government agencies,” said Sriram Ranganathan, Product Manager, IIMB-RERI.

IIMB-RERI is collaborating with a citizen initiative,, to provide a Google map based searching capability also for areas where detailed maps are available. Shiv Shankar of Mapshalli said, “Technology enabled solutions are the way forward to solve modern-day urban challenges. We started with mapping of 50 villages around Whitefield. Now, after collaborating with IIMB-RERI, we were able to expand to 350 villages to help citizens using modern technology.”

BBMP Commissioner Prasad lauded the IIMB-RERI effort. “I congratulate IIMB for this exercise and look forward to more collaborative efforts between BBMP and IIMB-RERI,” he said. Urban governance expert Ashwin Mahesh added that such systematic efforts to put government data in the public domain are needed to allow citizens to overcome uncertainty and participate in making a better Bengaluru.

Professor Panchapagesan also pointed out that this is the first of a series of such public service initiatives that IIMB-RERI plans for the empowerment of citizens.

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  1. Ramesh Sreekantan says:

    According to this Orion Mall is fine…

  2. Sunil Raju says:

    many of these lakes and rajakaluves had not existed for decades. It would be good for IIMB to survey actual rajakaluves. In some cases the lakes have been converted to bda layouts what is the purpose of the rajakaluve if the lake is non existent.

  3. IIMB-RERI says:

    Dear Ramesh and Sunil

    Thank you for your comments. Here is our clarification:
    1. This portal is based on surveys identified by the Revenue Department having Raja Kaluves on them . As of now, Orion Mall is not on any survey notified here.
    2. IIMB-RERI does not directly undertake survey on the ground. We’ll pass on your comments to the concerned authorities.


  4. akhil says:

    Hello we are are looking for survey number 81, 82 in parappan agrahara in south bengalore and it shows as Not in the Rajakaluve folder published by Revenue Department. Basically the survey numbers are not in the website is it good to buy

  5. Bhaskar MB says:


    We are looking plot in shivagange road, kempinganahalli, is there Rajakaluve in that area

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