Hello Aswin,

    I appreciate your interest towards Civil engineering and I'm here to help you regarding your query!

     Generally, there are many companies which offer placements to the graduates in BE. Civil Engineering. There are some top-notch companies as i mention them below,

• L&T constructions pvt.ltd.
• Essar group.
• Shapoorji Pallonji & co.ltd.
• WAPCOs.
• Tata projects ltd.
• Jaypee
• Simple projects ltd .
• Nagarjuna constructions ltd
• Era infrastructure Engineering pvt.ltd.
• Afcons infrastructure Ltd.

These are the major companies after graduation in civil engineering. 

Hope this helps !

All the best !