Yes, as soon as you earn at least 1 Merit, you will become a Jr. Member (it may take a few minutes to process). You can check the requirements for each rank here: Merit & new rank requirements.

I’ve seen that your usual place for posting is your local Indian board. In terms of merit, that is a tough board to earn merits in: During December 2018 (up to the 28/12/2018) only 17 merits were awarded on your local board (form 4 people to 8 different people). Considering all Merit history, 222 merits have been earned on your local board since the 24/01/2018. There are currently around 1.100 to 1.200 post being created on the Indian local board per month, so that is the context you are in, unless you manage to create some decent posts on the general sections on the forum in English to increase your odds.