Details about Pitlines available in Indian Railways by Zone and Division wise:
1.CENTRAL RAILWAY ZONE:
Mumbai CR Division:
* Mumbai CST - 8
* Wadi Bunder - 4
*...
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Mazgaon - 6
* Dadar - 2
* Lokmanyatilak Terminus - 8
Pune Division:
* Gurpuri - 3
* New Washing Siding(Pune) - 3
* Old Washing Siding(Pune) - 2
* Kolhapur - 2
* Miraj - 2
Nagpur CR Division:
* Nagpur - 2
* Ajni - 1
* Balharshah - 1
Solapur Division:
* Solapur - 3
* Daund - 1
* Kalaburagi - 1
Bhusaval Division:
* Bhusaval - 3
* Manmad - 1
* Amaravati - 1
* Chalisgaon - 1
* Murtajapur(NG) - 1
* Pachora(NG) - 1
2.SOUTHERN RAILWAY ZONE:
Chennai Division:
* Basin Bridge(Chennai Central) - 19
* Gopal Swamy Nagar(GSN) Yard( Chennai Egmore) - 3
* Tambaram - 2
* Arakkonam - 2
Tiruchchirappalli Division:
* Tiruchchirappalli - 2
* Mayiladuturai - 1
Madurai Division:
* Madurai - 4
* Rameswaram - 2
* Tirunelveli - 3
* Tuticorin - 1
Salem Division:
* Erode - 2
* Coimbatore - 2
* Mettupalayam - 2
Thiruvananthapuram Division:
* Thiruvananthapuram - 3 or 5(24,22,23,18,15)
* Kochuveli - 7 (In a developing and construction stage)
* Ernakulam - 3
* Nagercoil - 2(Located @ Nagercoil serves to both NCJ and CAPE)
Palakkad Division:
* Shoranur - 1
* Mangaluru Central - 3
3.SOUTH CENTRAL RAILWAY ZONE:
Secunderabad Division:
* Secunderabad - 6
* Hyderabad - 7
* Kazipeta - 1
* Bidar - 1
Vijayawada Division:
* Vijayawada - 5
* Kakinada Port - 2(Located @ Kakinada Port serves to both Kakinada Town & Kakinada Port)
* Narsapur - 2
* Machilipatnam - 1
Hyderabad Division:
* Kacheguda - 3
Guntakal Division:
* Guntakal - 2
* Tirupati - 5
Guntur Division:
* Guntur - 2
Nanded Division:
* Nanded - 2
* Purna - 1
4.EAST COAST RAILWAY ZONE:
Waltair Division:
* Visakhapatnam - 5
Khurda Road Division:
* Puri - 6
* Bhubaneswar - 4
Sambalpur Division:
* Sambalpur - 3
5.SOUTH WESTERN RAILWAY ZONE:
KSR Bengaluru Division:
* KSR Bengaluru - 6
* Baiyyappanahalli - 3
* Yesvantpur - 4
Mysuru Division:
* Mysuru - 3
* Arsikere - 1
Hubballi Division:
* Hubballi - 3
* Vasco - 1
6. SOUTH EASTERN RAILWAY ZONE:
Kharagpur Division:
* Santragachi - 11
* Kharagpur - 2
* Padmapukur(Shalimar) - 4
Ranchi Division:
* Hatia - 8
Adra Division:
* Adra - 1
Chakradharpur Division:
* Tatanagar - 3
* Jharsuguda - 1
* Rourkela - 2
7.KONKAN RAILWAY:
Karwar Division:
* Madgaon - 1
Ratnagiri Division:
* Ratnagiri - 1
8.EASTERN RAILWAY ZONE:
Malda Division:
* Bhagalpur - 4
Howrah Division:
* For Howrah Eastern Zone trains
^^ Tikiapara Coaching Depot - 10
^^ Lilauh Coaching Complex - 10(7-23; 3-20)
^^ Coaching Depot(Near Bangabasi Bridge) - 5
Sealdah Division:
* Sealdah - 6
* Kolkata - 8 or 10
Asansol Division:
* Asansol - 3
9.NORTH CENTRAL RAILWAY ZONE:
Allahabad Division:
* Allahabad - 2
* Kanpur - 7
Jhansi Division:
* Jhansi - 4
* Gwalior - 3(BG) + 2(MG)
* Khajuraho - 1
Agra Division:
* Agra Cantt - 4
* Agra Fort - 2
* Mathura - 2
10.EAST CENTRAL RAILWAY ZONE:
Danapur Division:
* Rajendra Nagar Terminal - 5
* Danapur - 2 or 3
* Patna - 2
* Patliputra - 3(3 under construction)
Dhanbad Division:
* Singrauli - 1
* Dhanbad - 3
* Gomoh - 2
Sonpur Division:
* Muzaffarpur - 3
Samastipur Division:
* Jaynagar - 2
* Darbhanga - 3
11.NORTHERN RAILWAY ZONE:
Firozpur Division:
* Firozpur Cantt - 2 Wash Lines
* Jammu - 3
* Katra - 3
Ambala Division:
* Bathinda - 2 Wash Lines
Delhi Division:
* New Delhi - 14
* Old Delhi - 8
* H.Nizamuddin - 6
* Anandvihar Terminal - 8 or 10
* Panipat - 1
* Delhi Sarai Rohilla - 5
* Rohtak - 1
Lucknow Charbagh NR Division:
* Jaunpur - 1
* Lucknow Charbagh - 6
* Varanasi - 4
* Sultanpur - 2
* Prayag Ghat - 3
* Rae Bareli - 1
Moradabad Division:
* Bareilly NR - 4
* Moradabad - 3
* Gajraula - 1
* Roza - 1
* Shahjahanpur - 1
* Chandausi - 1
* Balamau - 1
12.NORTHEAST FRONTIER RAILWAY ZONE:
Katihar Division:
* Katihar - 3
* New Jalpaiguri - 2
Lumding Division:
* Guwahati - 3
* Agartala - 2
* New Guwahati - 1
* Lumding - 2
* Silchar - 2
* Kamakhya - 2
Tinsukia Division:
* Dibrugarh - 2
13.NORTH EASTERN RAILWAY:
Lucknow NER Division:
* Gorakhpur - 6 or 8
Varanasi Division:
* Ghazipur City - 1 Wash Line
* Azamgarh - 1
* Ballia - 1
* Chhapra - 1
* Manduadih - 3
* Mau - 1
Izzatnagar Division:
* Kathgodam - 3
* Ramnagar - 2
* Bareilly City - 2
* Kashipur - 2
14.NORTH WESTERN RAILWAY ZONE:
Bikaner Division:
* Bikaner - 3
* Sri Ganganagar - 2
* Hisar - 1
Jaipur Division:
* Jaipur - Pitlines 3; Sick Lines -2
Ajmer Division:
* Madar Jn - 3(Pitlines are located @ Madar serve to both Ajmer & Madar)
* Udaipur City - 2
15.SOUTH EAST CENTRAL RAILWAY ZONE:
Nagpur SEC Division:
* G - 1 + 2(For MEMU's)
Bilaspur Division:
* Bilaspur - 4
* Korba - 1
Raipur Division:
* Durg - 4
* Maruda - 4
16.WESTERN RAILWAY ZONE:
Bhavnagar Para Division
* Porbandar - 1
* Bhavnagar - 2
* Veraval - 1(MG) + 1(BG)
Mumbai Central Division:
* Mumbai Central - 4
* Surat - 3
* Bandra Terminal - 4( 2 Dry Pitlines + 1 Wash Line + 1 Washline Cum Pitline)
Ratlam Division:
* Ratlam - 2
* Indore - 5
* Dr.Ambedkar Nagar(Mhow) - 1
* Mhow(Indore) - 2
Rajkot Division:
* Rajkot - 3
Ahmedabad Division:
* Ahmedabad - 11
* Gandhidham - 2
* Bhuj - 2
17.WEST CENTRAL RAILWAY ZONE:
Jabalpur Division:
* Jabalpur - 8
* Rewa - 1
Bhopal Division:
* Bhopal - 2
* Habibganj - 2+1(new under construction)
* Bina - 1
* Itarsi - 2
### I am happy to share this information in this site and it takes 2 days to gather information ###
Source(from this site and goggle and some PDF)
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The following is a summary of history of the lines of the Indian Railway as it was formerly
constituted (i.e. between 1955 and the reorganisations of 2002-3). Opening and closure dates are for
regular traffic, dates in brackets are for goods traffic. The condition of the lines, including spelling of
place names, is, as far as possible, as at Independence (15th August 1947). Letters...
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in brackets after a place
name indicate a physical junction to another system. Lines are organised geographically, according to
their branching from the main line. A code precedes the name of the line.

This is because there is very less friction between the wheels of the locomotive and the train.
This is the fundamental principle based on which railways were developed. Steel wheels on steel rails experience far lesser friction than say, rubber wheels on a road (like trucks and cars). In fact the friction reduces by almost 85-95%, which makes it extremely easy to pull or push very heavy loads on rail tracks.
As an example, using very simple approximations and numbers, one can illustrate how easy it is to move things on rails.
On...
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straight, level tracks, the amount of force required to push a 1 ton (1000kg) wagon, is the same as the amount required to lift about 2.5kg. So, pushing a WAP4 loco, weighing about 110 tons only requires the same effort as required to lift a 250kg weight. This is something that 4 or 5 reasonably strong people can manage easily. The loco will move very, very slowly, but it is possible to just push it.
Obviously this is a simplified calculation, and the numbers change based on many parameters, but the point is to illustrate that it is very easy to move coaches and wagons on railway tracks.