My suggestion will be the Institute of Chemical Technology, Mumbai. The reasons are mentioned below.

• It is solely dedicated to chemical engineering, unlike NIT Rourkela.
• It is famous for producing brilliant chemical engineers for years now.
• It has location benefits as Maharashtra and Gujarat are home to many industries. This helps in easy internship opportunities and placements also.
• Many good companies and even PSUs participate in the campus placement drive. Even if you have low CGPA points, you will get hired if you do well at the interview.
• The professors are the best in their respective domains. They also have good connections in the industry. They can help you get placed in any industry with just one letter.

Chemical engineering is a part of many departments in NIT Rourkela or any other NIT but ICT Mumbai specializes in it. Hope it helps.