Hello Aspirant
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Top engineering entrance exams:

• Joint entrance exam ( jEE main) exam held on April (second exam)
• jEE advance exam (may 2 to may 8)
• Birla institute of technology and science admission test (16 may and 26 may )

I will provide the link for all engineering entrance exams from careers 360 .here you can find all  the dates for all exams and brochures, eligiblity criteria also there for the entrance exams.once visit this below link to get an idea:
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https://engineering.careers360.com/exams
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If you have any questions further let me know.
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Thank you!!!!