Hello Siddhesh,
No, not at all necessary to apply anywhere after applying successfully for TNEA, but everything comes with a price( terms and condition), think wisely, if you're applying to only one exam, there will be less possibility of getting that exam cracked, so I'll suggest you to appear for more exams in india for engineering, be it any state
Apply to any of the below exams
JEE MAIN
JEE Advanced
BITSAT
VITEEE
WBJEE
MHTCET
KCET
AP EAMCET
Although you’ve missed most of the deadline, anyways go for the rest, check the website for the same.
I think applying for more number of engineering college will give you more options to choose and I think you should apply after that it is your decision to opt for whichever college and fields you want to choose for.
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