Hii,
honestly speaking I have 2 large telegram groups- on is related to business other is marketing group.
And I can search 9-10 active telegram groups with thousands of members and join them and post your link.
you can't take 100rs as min bid price is 600rs, so I can do some other works for you along with this one.
OR
just pay 100 on my Paytm, leave freelancing. I will do your work