Live in relationship is as good as marriage now. It my create issues between both as you earlier shared relationship. 

You should not date your ex wife 

2) during your marriage she was un faithful to you 

3) she had extra marital affair and filed false case of dowry harassment against you 

4) if you start dating her again she may file false cases to extort money from you 

before giving any advice, the fact is that

1. she was not loyal to you,

2. she had an affair despite being your wife,

3. she had another unsuccessful relationship after divorce you,

4. Now, if you again start the relationship, she may file false cases like rape, blackmail, etc but these risks are always involved in any relationship, 

5. considering the fact, you should restrain yourself from moving ahead in the relationship with your wife, but considering the fact that every relationship have risk, you can move ahead,

Please dont mind, if you can assure that she is not going to ruin your peace and your life once again and take all your hard earned money by accusing you of your faults which you may or may not have.

You are right, she basically needs monetary support thats why she is coming 

My suggestion is NO, dont entertain her, again you will suffer

1. You can date her.

2. If you remarry her or begin a live-in then she will have all the rights and remedies which accrue to a wife or a female in a live-in relationship.

There are many consequences to meet her or not.

1) you have money she doesn't

2) you are alone and she knows how to trap a man well experience in this by making new story

3) kindly meet her with family member plus in public place, but know you both are divorced by court. So you have to respect court decree as well.

4) Still you want to meet her kindly meet her in the women cell

1. As legal and personal ground suggestion will be not to meet her. Because you don't know what are running in her mind.
2. You have already paid lots of money and now in old days coming near or will be starting she needs support of yours. Actually she needs support or her house friend need support to run the family.

You are the better judge of the situation

You can deny to resume the relationship with her.

You can pass your time to some extent with her without making any commitment to her.

She may not have realised the fact or the grievances she has caused to you by her past activities, even now she may not be true with her intention.

She may be approaching you only for the reason of a financial security since her earning capacity may be diminishing and she may foresee a blank future to sustain her expenses.

Of course the courtesy or the mercy you may show now should not transform into her dominance on you once again, which  may happen due to some weaker circumstances if you are not careful.

The decision to be with her or continue the relationship with her may be like inviting trouble in the given situation, hence you make a prudent decision on this to avoid getting trapped once again.

1. " He is an Awara and Gunda type of a guy and you are a nice homely person. Even then she left you for him and caused all sorts of miseries for you.

2. Now her said affair has gone sour and she wants to have more money.

3. You are probably the only known guy to her from whom she can try to extort money again since she can make you felling weak on her again.

4. The "comfort of companionship" as sought by you could become very painful again if you allow her to enter in to your life.

5. It will be prudent on your part to stay away from her and seek "comfort of companionship" elsewhere in your own interest.

Dear Sir,

Yes, many do such an act. If you two do not mind staying together then it's okay to stay together. But do not try to force enter your ex wife's house specially with wrong intentions. But i would like to question you,

1) Why did you get divorced if you still want to stay together?

2) Don't you have any self respect?

3) Are sexual things are more important then any other thing in your life?

I think it would be better you think on this part, 

Now it's up to you, your decision, your life, your dignity, your self respect.

1. Apprehensively you seem to have forgotten the Mental & Physical troubles your former wife gave you when she filed D.V, Maintenance, 498A etc....

2.  Emotions and Sentiments have no place in the legal world. You would not know what trap is being laid out for you (Men are always emotional fools).

3. She left you for HER OWN GAINS and she wants to come back for HER OWN GAINS .... where do you come in ????  THINK !!!!  You have come out from your earlier legal & emotional troubles .... Think whether she is worth another legal & emotional trouble ????

- Supreme court declared that , when  a man and a woman in love live together , is part of the right to life and not a criminal offence, and further live-in relationships is legal in India.

- But other side , as per the Supreme Court,  When a man and a woman live together as husband and wife for a long term, the law will presume that they are legally married unless proved contrary.

- Further, the Protection of Women from Domestic Violence Act 2005 provides for the protection, maintenance and right of palimony to a live-in partner, if she complains.

- Hence, dating is not a problem legally, but if you will start once again relationship , then in future she will have right just like a wife.

- Since, she is also not a faithful lady , hence you should think before starting a relationship with her. 

Good luck and dont forget to rating Positively.

There is no harm in supporting your ex-wife legally and emotionally, but as she had filed false cases against you before, she might do it again. So, I wouldn't advise you to indulge with her very much.

in my opinion better avoid and keep away. 

you can date and also you make relationship with her consent but may be after she may false cases against you. 

Dating is not a problem to the divorced wife and same is not punishable as well as both of you are agree to this.

You may keep the relationship even without the marriage and not bound to marriage untill you make sure that things are fine and settled.

1. She can lodge various cases like sexual harassment or rape against you if she have plans to grab more money from you.

2. You should be very very careful while having any conversation or physical intimacy with your ex wife. 

You can do  recordings of your personal meeting with your ex wife 

2) audio / video recordings are admissible in evidence 

There is no such legal procedures to be followed in this regard, at least not in our country.

It is a decision to be taken by you both judiciously.

If you apprehend any trouble by such meetings or any hidden danger then you may be vigilant on all the aspects particularly ion those weaker moments when you both are together.

Rest other things should be taken care by using your own prudence. 

you can gather evidence such as call recordings and there are no such consequences which you will have to face in the coming future.. 

1. You two re two different adult person having no personal relationship now.

2. You can meet anytime, anywhere and every where as per your choice for which you need not take leave or inform any authority.

3. Only note of caution is stay careful and act with your head and not heart in your own future interest/safety.

There is no such authority

There is no such way as per law.