Hello,

I have mentioned below some of the best companies for B.tech according to me:

Unitech

Tata projects

Skyline builders

Hindustan construction company 

Nagarjun construction company

Metro tunneling group

Hi 

Following are the top companies in India offering job for civil engineer

1. Gammon India 

Projects undertaken:  Transmission line,  infrastructure management and power sector,  transportation projects,  irrigation project. 

2. Larsen & Toubro LTD

It is responsible for constructing tallest building,  longest flyovers,  largest airport,  largest Bridges,  longest pipeline etc 

3. Punj Lloyd Group

It offers service in Energy and Infrastructure along with engineering and manufacturing capabilities in defence sector. 

4. Jaiprakash Associate LTD

5. Lanco Infratech Limited

This company expertise in solar,  power,  Natural resources and infrastructure

6. Nagarjuna construction company

This company is into buildings and housing infrastructure

7. IVRCL Infrastructure and Projects LTD

They operate in water and irrigation sector 

8. Simplex Infrastructure LTD

9. GMR group

10. Hindustan Construction company

HCC spans the sector of Engineering and construction, Real estate,   Rural Development and management. 

11. TATA projects

Hello Mahmmed,

Here are the some of best companies for which you can try after civil engineering:

• Hindustan Construction Company
• L & T
• DLF
• Tata Projects
• Gammon India
• Sobha Developers Ltd.
• Shapoorji Pallonji & Company
• Unitech
• Nagarjun Construction Company
• Punj Lloyd
• Aga Khan Planning and Building Services
• Ayas Shilpa
• Skyline Builders
• Sadbhav Engineering
• Bridge and Roof Company
• MARG Limited
• Metro Tunneling Group
• Gannon Dunkerley & Company

All the Best