Companies Act, 1956
Sec 631 - Penalty for improper use of words
"Limited" and "Private Limited"
If any person or persons trade or carry on business under any
name or title of which the word "Limited" or the words "Private
Limited", or any contraction or imitation thereof is or are the last word
or words, that person or each of those persons shall, unless duly incorporated
with limited liability, or unless duly incorporated as a private company with
limited liability, as the case may be, be punishable with fine which may extend
to five hundred rupees for every day upon which that name or title has been
used.