Whether TCS will take legal action is a matter which only company can comment.
31st March 2018 From India, Pune
A company like TCS will have hundreds of clients. Average employee might deal with clients but only few of them and not all. Against this backdrop, how you would know that particular company, where you have applied for the job could be TCS's customer?
Secondly, as you say, you have not dealt with them directly. Then where is is the question of solicitation?
Thirdly, you say that your work will be different from the the work the work that you will do in future. In that case, TCS should not have any problem. However, this could be only the secondary defence.
Lastly, earlier I have posted on this forum ruling by the Delhi High Court. Click the following link to refer it:
From my point view, you may go ahead and given resignation. No need to disclose to TCS, which company you will join in future.
31st March 2018 From India, Bangalore
#AnonymousNo issues, you can just enquire the current company collegues that any of them joined at client place from your company. And the same ask at client place.
If no references found to enquire just check with your manager or HR. Whether its fine for them or no, but if they say ok then get an approval for ready reference to not get any issues in future.
4th April 2018 From India, Hyderabad