Follow the advise of Ramachary and Kapil Chandana.
1) Is this case eligible enough to be taken to the court of Law? I ask this because there is no proof other than the bank statements indicating the transaction.
A. Eligible but you have to fight by appointing an experienced advocate, otherwise you may lose the case.
2) For filing the case, can I approach the Court of Law in Visakhapatnam (andhra pradesh) where I live or should I have to approach the Court of Law in Erode (tamilnadu) where my uncle lives. Matter of fact I live in Visakhapatnam and I transferred the amount to my uncle who lives in Erode, Tamilnadu via an Online / Netbanking NEFT transaction method, none the less the transaction took place in visakhapatnam. The address mentioned on my bank account statement is my house address at visakhapatnam.
A. The rules of territorial jurisdiction are 1) Place of defendant i.e. your uncle place whether it may be residence or working place 2) place of cause of action 3) place of part of cause of action. In simple way, you can file case at your place i.e. Vishakapatnam or Erode, Tamilnadu. It is your option.
3) My uncle owns a plot of land in Visakhapatnam, but his house where he currently resides is in Erode Tamilnadu. Can I attach his Property at Visakhapatnam worth about Rs.6,00,000/- at the time of filing my case. If I do so wouldn't he be able to sell his property at visakhapatnam until my case is solved in the court?
A. Yes, you can attach the above property. Once it is attached, he cannot sell.
4) Do I have to engage a Lawyer for this case or can I represent my case myself in the court.
A. As this is complicated case, it is better to appoint advocate that too experienced only. Do not look for less fee. He should be reliable also.