Hi aspirant,

Part time chemical engineering diploma program is available in different colleges/University. In both India and abroad for regular and distance learning.

But the degree will be known as "Bachelors of Engineering" not "Bachelors of Technology"  Here are few colleges-:

1. International Institute of Management and Engineering  (https://www.shiksha.com/college/international-institute-of-management-and-engineering-mira-road-mumbai-48018)
2. Government Engineering College, Thrissur
3. Dr MGR Educational and Research Institute, Chennai.

I hope this helps.

You have tagged the Mahatma Gandhi mission Jawahar Lal Nehru engineering college in your question. So I am telling about the same. The college does not offer Diploma in Chemical Engineering to the students. The college offers Bachelor of Technology Chemical Engineering to the students and also Lateral entry course to the students. The college also offers PhD in Chemical Engineering.

Read more:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/colleges/mahatma-gandhi-missions-jawaharlal-nehru-engineering-college-aurangabad/amp&ved=2ahUKEwiG_uL42975AhX8tVYBHeoGDkIQFnoECA8QAQ&usg=AOvVaw1KeamCuF4TmtB3jGtukW3U