vegetarian or not.
all boils down to the same thing, getting the right nutrients / macros.
so u need to see whats the best source of protein u can get etc.
either from whey, eggs, nuts, soya etc.

nice.. no pain no gain.
That time u were working? or student?

Damn... i read somewhere reply someone taken the mass gain product 2 month gain 10kg.
Last time i gain 1 month 1kg my mouth already damn tired.

If you're looking for weight gaining supplement, i would recommend ON Mass Gainer. I gained roughly around 10kg in 2 months but make sure you do work out or else it will all go into your belly lol. However, like what the rest said, try to eat more solid foods instead of relying on supplements.

Eat more + weight training.

1. Eat more fat + protein food. You can work on burning the fat later.
2. Start lifting light weights and increase slowly.
3. Get enough sleep everyday

I was at 43kg after graduating in 2012. 23 years old btw. In 2013, something opened my eyes and I decided to change the way I looked. Started eating well...oh and I'm a vegetarian. I also stated going to the gym regularly.
I am now at 59kg which is good for my height (161cm)

Nope i havent stop taking the mass gainer. Currently im at 60kg which i believe is still underweight for my height of 173. 1 pack of the 15lbs mass gainer each month fyi.

did you develop a big tummy while consuming mass gainers? i don't think it is for everyone because for me personally all the weight will go straight to my stomach area and i will develop acne. 

all the best bro..but dont solely rely on supplements. Intake more solid foods 

Are you taking some kind of plant protein? What brand?

What is “ON” products? So you can take eggs huh? You not scared of taking too many eggs? Cholesterol.

I see. You cook the eggs... as in fried eggs /omelette or smashed eggs.

Very good of you to feed the rest to cats.