Is civil engineering in NIT Trichy a good choice?

If NIT Trichy is your only option, then you can go for it. But for Civil Engineering infrastructure can be a vital factor. 

The budget that usually is allocated for infrastructure incorporates buying lands from peasants to fund the research later on with a low-cost housing or environmental impact assessment. 

If you have chosen Civil Engineering, based on your electives, you could opt to specialize in Hydraulics engineering, Structural engineering, Environmental engineering, Building materials, Geotechnical Engineering, Transportation Engineering, Construction Management, Infrastructural engineering, and other relevant disciplines. 

It is best to get familiar with the topics briefly noted above. Based on your knowledge and expertise, choose one (or more, if required) of the many specializations and then do a brief research on the basic amenities, like faculty strength and similar aspects of NIT Trichy. 

However, in terms of academics, NIT Trichy is an excellent choice.