List of top research & development companies in Kolkata

Maharashtra
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Delhi
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Jammu & Kashmir
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Bihar
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Uttarakhand
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Manipur
Assam
Nagaland
Pondicherry
Daman & Diu
Lakshadweep
Dadar and Nagar Haveli
Andaman & Nicobar

Agra
Ahmedabad
Ahmednagar
Ajmer
Akola
Alappuzha
Aligarh
Allahabad
Alwar
Ambala
Amravati
Amritsar
Anand
Anantapur
Aurangabad
Bangalore
Bardhaman
Bareilly
Baroda
Bathinda
Begusarai
Belgaum
Bellary
Bhagalpur
Bharuch
Bhavnagar
Bhilwara
Bhopal
Bhubaneswar
Bid
Bikaner
Bilaspur
Chandigarh
Chandrapur
Chennai
Chittoor
Chittorgarh
Cochin
Coimbatore
Cuddapah
Cuttack
Dakshina Kannada
Darjeeling
Dehradun
Dhanbad
Dharwad
Dhule
Durg
East Godavari
Ernakulam
Erode
Faridabad
Gandhinagar
Ganjam
Gautam Buddha Nagar
Gaya
Ghaziabad
Goa
Gorakhpur
Guntur
Gurgaon
Guwahati
Gwalior
Haridwar
Hazaribagh
Hissar
Hooghly
Howrah
Hyderabad
Idukki
Indore
Jabalpur
Jaipur
Jalandhar
Jalgaon
Jalna
Jalpaiguri
Jammu
Jamnagar
Jamshedpur
Jhajjar
Jhansi
Jodhpur
Junagadh
Kachchh
Kamrup
Kancheepuram
Kannur
Kanpur
Kanyakumari
Karnal
Khordha
Kochi
Kol
Kolhapur
Kolkata
Kollam
Kota
Kottayam
Kozhikode
Krishna
Krishnagiri
Kurnool
Kurukshetra
Latur
Lucknow
Ludhiana
Madurai
Mahesana
Malappuram
Mathura
Medak
Meerut
Midnapore
Mohali
Moradabad
Mumbai
Muzaffarnagar
Muzaffarpur
Mysore
Nadia
Nagpur
Nainital
Namakkal
Nanded
Nashik
Navi Mumbai
Navsari
Nellore
New Delhi
Noida
North East
North Goa
Palakkad
Panchkula
Panipat
Parganas North
Parganas South
Pathanamthitta
Patiala
Patna
Pondicherry
Prakasam
Pune
Purba Singhbhum
Raigarh
Raipur
Rajkot
Rajsamand
Ranchi
Rangareddi
Rewari
Rohtak
Saharanpur
Salem
Samastipur
Sangli
Satara
Secunderabad
Shimla
Siliguri
Solan
Solapur
Sonepat
South Goa
Srikakulam
Srinagar
Sundargarh
Surat
Thane
Thanjavur
Thiruvallur
Thoothukudi
Thrissur
Thriuvananthapuram
Tiruchirappalli
Tirunelveli
Udaipur
Udham Singh Nagar
Udupi
Ujjain
Vadodara
Vaishali
Valsad
Varanasi
Vellore
Vijayawada
Virudhunagar
Vishakhapatnam
Warangal
West Godavari

Agriculture
Mining & Quarrying
Manufacturing of Food Products
Manufacturing of Tobacco Products
Manufacturing of Textiles
Manufacturing of Wearing Apparel
Manufacturing of Leather Products
Manufacturing of Wood Products
Manufacturing of Paper Products
Manufacturing of Chemical Products
Manufacturing of Machinery
Manufacturing of Motor Vehicles
General Manufacturing
Electricity, Gas & Water
Construction
Trading
Hotels & Restaurants
Transport and Storage
Transport Services
Post and Telecommunications
Finance
Insurance
Real Estate and Renting
Computer Related Services
Research & Development
Business Services
Community and Social Services
Education
Health and Social Work
Recreational, Cultural and Sporting Activites