The Haldia Institute of Technology is a well-reputed institute in West Bengal. Given the choice, you should go for it. They have a great faculty base. The placement opportunities provided to the students are also good. Core companies such as Johnson control visit the campus placement to recruit from ECE. According to the recent placement highlights the average CTC offered at the institute is 3.5 LPA.

The electrical department has not been doing well in some years now, therefore, it would be advisable to not go for this. 

Between Techno and HIT the latter is definitely better. HIT is one of the oldest and finest colleges in West Bengal.