Misrepresenting by bunch of people as a legit company in India and induced to invest money in it

I have came across a company, who claimed to be a legit established company in India, the representative of company chats on whatsapp only and adds all the investors in the whatsapp group, all the numbers are switched off. One of my relative informed me and I saw it's app where all the documents concerning RBI, Tax department, Government of India are shown, trusting the company as before purchase it shows a contact and stated the terms, I invested money in the company. And I withdrawal only a proportion of it, then the company puts a condition for the honesty test of members and induces to further invest, if we want to withdraw our money, we did trusting them and in the shadow of their condition that there company is facing fraud, however, the app shows all data as 0 and nothing relevant is showing, no one is replying to messages and further no phone number is live (here I discovered this) and I am pretty sure about the fraud, forgery, misrepresention, criminal breach has been occurred to me. I have a considerable amount of under 30,000 RS hanging in the middle which I want to recover, kindly give me proper enforceable legal advice.