6.1 Current Situation Analysis
Average annual rainfall of the city is 50 mm and city’s topography is bowl shaped surrounded by hills in three directions. Depending upon the natural topography, the city is divided into two zones in view of drainage pattern of the city namely Anasagar zone & City zone. There are three important water bodies in the city namely Anasagar lake, Foysagar lake and Khanpura pond. The drainage system of Ajmer is well designed, inter-connecting the major drains and main water bodies. The Foysagar Lake is used for intermittent water supply to the Ajmer city and also for recreational purpose. Presently Anasagar Lake is not used for water supply but for recreational purpose. The third main water body of the city is Khanpura pond which receives storm water along with municipal wastewater of the city which is used for irrigation purpose.
Anasagar Zone: In Anasagar zone a natural lake known as Anasagar Lake is formed by the natural topography of the surrounding hills. There are three main storm water channels in the zone known as Kazi ka nallah, Bandi Nadi and Anasagar escape channel.
Kazi ka nallah generally discharge water from the hills and nearby areas in to Anasaar Lake. Bandi Nadi discharge storm water from the hills and carries overflow from the Foysagar to Anasagar in case of heavy rainfall. The overflow from Anasagar is conveyed by Anasagar Escape channel to Khanpura Talab. All the drains in Anasagar zone
have nearly similar kind of problems. Due to the absence of proper sewerage system the drains carry the municipal wastewater and finally discharging into Anasagar Lake thus deteriorating the water quality of the lake. Mostly the drains are chocked with municipal solid waste, silt and sullage. (See photoplate)
The hills have very steep slope and are devoid of vegetation resulting in heavy run-off and soil erosion causing silting of drains and thus Anasagar lake.
Including main channels and its tributaries there are five main and six secondary storm water drains in Anasagar Zone. A brief description of these drains is discussed:
Bandi Nadi
The total catchment area of the drain is 16.80 Km2 and total length is 5.5 Km Bandi Nadi functions as overflow channel for Foysagar discharges into Anasagar Lake and it also collects storm water from the hills. The drain has three tributaries namely Kazi pura drain, Hathi Khera drain and Kotra drain. The drain is lined for only 7.20% of its total length. The major issue with this drain is it does not have a defined alignment. Hence during rainy season run-off gets diverted. Finally it discharges into Anasagar near Vishramsthali in Ajmer Pushkar Road.
Kazi ka Nallah
The total catchment area of the drain is 6.72 Km2 and total length is 2.5 Km. the drain has two main tributaries namely Bhopon ka bara drain and Mehndi Khola-Shastri nagar drain. The drain is unlined except 16.80% (420 m) of its total stretch. The drain channelizes storm water from hilly terrain, plain and built up area ultimately discharging into Anasagar Lake. While passing through built up area drain receives wastewater and solid waste from the colonies.
Anasgar Escape Channel Thus the drain is chocked with municipal solid waste, silt & sullage. Police line is located in low lying area, ponding is an observed phenomenon in this area.
Mahaveer Nagar – Arihant Colony drain
The total catchment area of the drain is 0.88 Km2 and total length is 1.5 Km. the drain has two main tributaries namely Boraj drain and Nagphani drain. 50% of the drain is lined out of the total stretch. The drain collects surface run-off from the Taragarh hill and Nagphani and receives water from Boraj drain and Naghphani drain in its course. The drain is chocked with municipal solid waste, silt and sullage. Wastewater from nearby colonies finds its way through open drains into the Mahaveer nagar drain and finally discharged into Anasagar Lake resulting in unhygienic condition and deterioration of water quality of the lake.
Anted Chatri Yojna Drain
The total catchment area of the drain is 0.761 Km2. The drain has three tributaries namely Kazi pura drain, Hathi Khera drain and Kotra drain. The channel does not have proper alignment hence the surface run-off spreads onto low lying area before Sagar Vihar Colony.
Vaishali Nagar – Diversion Channel
The total catchment area of the drain is 1.21 Km2 and total length is 400 m. This is a tributary of Charasiawas drain which discharges into Anasagar Lake.
City Zone
Besides the overflow from Anasagar Lake, the surface runoff from city zone finds its way into Khanpura talab through Anasagar Escape channel.
Anasagar Escape Channel
The total length of the channel is 8.8 km out of which 57.61 % stretch of its total length is lined. During
rainy season this channel causes flooding throughout its
stretch. The carrying capacity of the channel is not sufficient to carry rub-off during rainy season . Silting has also reduced the carrying capacity of the channel.
This channel finally discharges into Khanpura talab.
There are seven main drains and four secondary drains
discharging into the Anasagar Escape channel. The main drains discharging into the Anasagar Escape channel are discussed below:
Ganj Drain
The total catchment area of the drain is 1.17 Km2 and total length is 1.5 Km. The drain has two tributaries collecting surface runoff from Nahar Mohalla and Agrasen nagar.
The drain is lined with stone masonry through its length.
The drain does not have a defined course thus cause flooding near Mahaverr circle.
Shiv Kund Nagina Bagh Drain
The total catchment area of the drain is approx. 0.82 Km2 and total length is 1.5 Km. The drain in most of the stretch is lined but fully chocked with municipal solid waste, silt and sullage. Earlier this drain used to function as overflow from Anasagar Lake.
Education Board –Frazer road drain
The total catchment area of the drain is 3.80 Km2 and total length is 2.5 Km. it carries wastewater from peripheral colonies. The main tributaries joining to the drain are drain from overflow of Kazi ka Nallah near Jawahar Nagar, drian from overflow of Kazi ka Nallah near
Board of Secondary Education office and Kundan Nagar drain. The carrying capacity of the drain has remarkably reduced due to excessive silting
G.P.O to Topdara- Kuthcheri road
The total catchment area of the drain is 0.51 Km2 and total length is 500m. The main stream joining the drain is Hathi Bhata drain. The drain is chocked with municipal waste throughout its stretch.
Inderkot-Madar Gate drain
The total catchment area of the drain is 1.74 Km2 and total length is 2 Km. Puran mandi drain is discharging into Inderkot-Madar gate drain. The drain starts from Taragarh hill and ends into Anasagar Escape channel. The portion between G andhi Bhawan to escape channel is most chocked stretch of the drain.
Masuda Nadi
The total catchment area of the drain is1.27 Km2 and total length is 2.5 Km. the drain is passing through service lane and it is encroached. The regular and proper cleaning of the drains is not possible.
The drain also receives sewage from outfall of 800 mm dia sewer line near Loco ground opposite Dadabhai Colony, collecting sewage from Dargah area.
Clock Tower to Moinia Islamia Drain
The length of the drain is 500 m and the catchment area is 0.37 Km2. The drain has similar problem of chocking with solid waste as discussed above.
The identified flood prone areas in the city are:
– Station Road and Railway Station yard – Kutchery Road
– Gujar Dharati , Jhalkari Nagar
– Sector III of Housing Board Colony of Vaishali Nag
A summary of all the main drains and secondary drains in Anasagar zone and city zone is given in Table 6.1 mentioning the stretch of the drain lined before RUIDP and under RUIDP.
Name of drain Mehndi Khola/shanti nagar drain
(Tributary of Kazi ka Nallah) NA 0.53 Drain from Clock Tower to Moinia
Islamia 0.7 0
Inderkot – Madar gate drain 2 0
Masuda Nadi 2.5 0.588
Escape Channel 9 0.73
Bhopon ka Bada NA 0.65 Petrol Pump No.9 to Railway crossing 1.2 Drain from Topdara to Petrol pump
No.9 2.5
Total 33.8 6.926
6.2 Development Objectives
It is being targeted to restructure and line the remaining drains. Desilting of all the drains is required because almost all the drains are highly chocked with solid waste, silt and sullage.
During rainy season all the drains gets chocked and causes flooding in some areas.
6.3 Strategy
Cleaning and widening of existing drains and construction additional drains in new areas to avoid flooding during rainy season.
6.4 Major initiatives / projects i) Desilting of 8.42 Km of Drains
Desilting of all the drains has been proposed, however this should be the regular practice.
ii) Lining and Restructuring of 18.88 Km of Drains
The following drains have been identified for lining and restructuring which was left under RUIDP.
Bandi Nadi
Mahaveer Colony
Education Board – Frazer Road drain
Escape Channel
Petrol Pump No.9 to Railway crossing
Drain from Topdara to Petrol pump No.9 iii) Construction of New drains in New Colonies
A provision has been made for construction of new drains in the colonies coming up in future on the basis of projected population.
6.5 Basis of Prioritisation
Prioritisation has been made on the basis of low cost project and need of the project 6.6 Project Summary
Project Name Estimated Cost (Rs) Cr
Desilting of 8.42 Km of Drains 1.035 Lining and Restructuring of 18.88 Km of Drains 15.80 Construction of New drains in New Colonies 19.55
Total 36.45
Phasing & Implementation
Name of the Project 2006 2007 2008 2009 2010 Desilting of 8.42 Km
of Drains
Lining and
Restructuring of 18.88
Km of Drains
Construction of New
drains in New Colonies
Institutional Mechanism for Implementation
Presently in Ajmer there is no authority responsible for operation and maintenance of the drainage system. These projects will be implemented by the Municipal Council of Ajmer, Government of Rajasthan.