That question whether 66 Lottery real or fake" gets one simple answer across the majority of pages, but an single-word answer remains precisely the least useful form of answer. The name spans a great many operators - certain ones run professionally, some simply fake.
What to Ask Instead
Not whether the name real" the question is whether the
specific platform behave as a business intending to pay". This question produces testable answers.
Check 1 - Written Withdrawal Conditions
Minimum amount, 24-hour limit, turnover requirements, identity documents - each written before the first rupee. An operator hiding them has already answered the question.
Test 2 - Support Channels
Any operator available solely via an anonymous chat handle offers no recourse.
Test 3 - Payment Handling
Deposits requested to someone's personal UPI ID rather than a proper in-app cashier is one of the most decisive signals there is.
Signal 4 - The Claims
Guaranteed income, "sure shot promotion, photoshopped payout evidence - any indicates one platform at ease about misrepresenting to users.
Check 5 - Withdrawal Behaviour
A conclusive test is only arrives when funds has been in, something that is exactly why the earlier checks are worth running. Where funding process flawlessly while withdrawals hit shifting excuses every request, the operator's pattern constitutes a complete answer.

The editorial reference at
66 Lottery explains the signals in depth. No outside source - this one as well - could assure a given platform's behaviour; what any explainer may do is show how to evaluate it before spending money.