UK Travel visa denied due to bank statement (frivolous reasons cited) [duplicate]

First I strongly recommend reading this excellent answer. Not only it explains the same issue as yours, but it also has additional points worth considering regarding reapplying.

There is also a generic answer about bank statements here. It is a long one, but very well written and contains lots of useful information, including sponsored applications.

Specific to your case is another answer on a similar topic (yes there are plenty):

On the other hand, borrowing money from family is not forbidden per se but you still need to document your own income thoroughly and account for the sudden cash deposit. The problem here is that it looks a lot like you obtained money just to make yourself look richer than you really are and increase your chances of getting a visa. Also, the consulate wants to know that you (and your family) obtained the money legally, i.e. that you are not involved in criminal activities, money laundering, etc.

Another reason - and this is why I'm writing it as an answer instead of dumping links in comments - is that you probably think of this paperwork as being similar to Indian government bureaucracy. Which, in my experience, is that you are required to bring a lot of papers, which are time consuming to get, but would mostly be ignored when your paperwork is reviewed, and many are hardly even relevant.

Based on a lot of feedback, this is not how the UK consulate works. They pay a lot of attention to the paperwork submitted and are very good in sniffing out inaccuracies. For example they explicitly mentioned the unexpected deposit which are not explained by ITR or by anything else. Explaining those issues is your responsibility.

Note that they are under no obligation to issue a visa. Again, this is different from the case where you WILL get your government paperwork anyway, they would just annoy you with more requests of useless documents. There is no "right to visa" - it is a privilege which you need to prove you'd qualify for.

Relax. Don't be so defensive and don't shift the blame to the ECO and don't judge the legality of their actions on a mere refusal. They know their country's laws much more than an applicant does.

Once you have calmed down and come out of this state of mind simply go hire services of an immigration specialist and let them build your cause for you.

You have mentioned that your father has sizable assets so i assume having some consultancy won't be a dent on your pockets. I believe everything you're saying is true and you are a legitimate visitor but you are not being able to make a strong case for it in front of the ECO.

So stop digging yourself in further and take some help that you can easily afford.