The information technology (IT) industry in India consists of two major components: IT services and business process outsourcing (BPO). The sector has increased its contribution to India's GDP from 1.2% in 1998 to 7.5% in 2012.[213] According to NASSCOM, the sector aggregated revenues of US$147 billion in 2015, where export revenue stood at US$99 billion and domestic at US$48 billion, growing by over 13%.[213]

​Self Publishing is mainstream today. When you purchase an eBook off of Amazon there’s a pretty good chance you’re buying a self-published book. Self-publishing is also ridiculously easy. I tried this a few years ago and couldn’t believe how simple the process was. To self-publish a book you’ll first need to write and edit it, create a cover, and then upload to a program such as Amazon’s Kindle Direct Publishing. Don’t expect instant success though. There will need to be a lot of upfront marketing before you can turn this into a passive income stream.

This is an interesting take and good advice for those who probably do not need to ever worry about becoming destitute. I’m sorry but too many of your options including your own list of income require quite a bit of initial investment/capital and these suggestions are useless to those living paycheck to paycheck. I’d like to see the average low to middle income household purchase additional property for rental, invest in their portfolio (if they can even start one), or even afford to have a vehicle or room to rent. Far too first world of a solution for the general public.

This can be a little easier said than done, but if you have a large social media following, you can definitely earn money promoting a product or advertising for a company. You can even combine this with different marketing campaigns if you are an influencer and have your own blog (advertisement + affiliate income). This is how many bloggers make money! Again, it is not 100% passive but once set up correctly and then scaled, can be surprisingly lucrative.

Finding the time and motivation to make extra money can be tough, especially if you’re already working a demanding day job. However, whether it’s paying off a debt or saving up for a major purchase, there are times when one income just isn’t enough. If you can’t face the thought of putting in extra shifts on top of your 9-5, you need to find another solution – one that doesn’t feel like work but still brings in the cash.
This is another way of ensuring regular income for a period of time. Let us say, you are uncomfortable with the idea of investing in high dividend yield stocks as they generally do not give price appreciation. Also, there is no assurance on dividend yields as dividends may fall if the profits of the company fall. Another way out is to invest the money into a debt fund and pay yourself through an SWP. Let us assume that you did the same SIP and ended up with Rs.1.41 crore at the age of 45. Now you want to pay yourself a regular income for a period of 15 years till your retirement. Here is how it will work.

How to Monetize: Affiliate marketing works well when you discuss products on your blog. For our fish tank blog, we would link to all the things you need to buy for an aquarium and then when people click on that link and buy that item (and other items they purchase with it with some exceptions) you get a percentage of the purchase. Amazon Associates is the best-known affiliate marketing program, but there are others like Impact Radius, ShareASale, Commission Junction, ClickBank and Rakuten too.
Prime Minister Indira Gandhi nationalised 14 banks in 1969, followed by six others in 1980, and made it mandatory for banks to provide 40% of their net credit to priority sectors including agriculture, small-scale industry, retail trade and small business, to ensure that the banks fulfilled their social and developmental goals. Since then, the number of bank branches has increased from 8,260 in 1969 to 72,170 in 2007 and the population covered by a branch decreased from 63,800 to 15,000 during the same period. The total bank deposits increased from ₹59.1 billion (US$820 million) in 1970–71 to ₹38,309.22 billion (US$530 billion) in 2008–09. Despite an increase of rural branches – from 1,860 or 22% of the total in 1969 to 30,590 or 42% in 2007 – only 32,270 of 500,000 villages are served by a scheduled bank.[204][205]
Truebill is an app that helps you save money by identifying recurring subscriptions and other bills and helping you cut costs by negotiating better rates and fees. One of their partnerships is with Acradia Power, which has the potential to save you up to 30% on your electric bill. It searches for better power rates in areas where competition is allowed, and it locks in the better prices for you.
You can uses tools such as Wordpress for your website platform. MailChimp to collect email addresses. Clickfunnels to create funnels and landing pages that are completely automated. Stripe to process payments. These are just a few tools I use but there are many more options for each part of your business. Find the ones that work for you and help you create systems. (Disclaimer: I was not paid to mention any of these companies).

Creating multiple streams of income does not mean get a second job to supplement your current income. A second job does not provide you with the flexibility and freedom to increase your income. In fact, it can hurt you when you think about it. You are trading time for money and in the long run, you lose. Instead, create something that will allow you to give yourself a pay raise when you need and want it. 
"Rental properties provide a source of passive income and the possibility of overall appreciation of the property with tax advantages," Lou Cannataro, partner at Cannataro Park Avenue Financial, tells Bustle. "Our generation and those to follow will not have pensions, and social security is 'iffy,' at best. Rental properties can provide that constant income (people always need a place to live) that is not directly tied to the marketplace and one cannot outlive."
I just started out with Affiliate Marketing (idea # 8) and it is not as easy as people make out to be. For me the hardest part so far is learning Search Engine Optimization (SEO) and driving traffic to my website. I m only 3 months into it, but I am confident that the site will begin to generate some income, I have give it 6-9 months, so we’ll see.

A lot of people these days are moving towards the two job concept. Amongst the people i know who have applied this in their life; the primary reason is that the 9 to 5 job pays their bills, lets the fire burning in the kitchen, and the second job is where their passion lies. This is the passion, which might have been forgotten while growing up, or is not a viable primary income source.
An obvious example is over exposure to bank stocks, which have been excellent investments for over a century.  Though a foundation of most portfolios, bank stocks do involve more risk at certain stages of the economic cycle than many realise.  Being less exposed to bank shares in the last few months could have preserved some capital.  So, a more diversified approach can help mitigate some of these risks.