Blogs and authority websites are different than niche websites, because they generally imply on-going content generation.  Sure, I could stop writing on this blog today and let it sit forever, but that’s not the intention of the blog.  Furthermore, blogs and authority websites tend to include a community or social aspect.  We have Facebook pages and Twitter accounts (can someone explain to me why the hell I haven’t made a Facebook page yet?), and we discuss various topics in the comments of each article or blog post.  Although SEO does affect traffic, community is more important.
According to 2011 census data, India has about 330 million houses and 247 million households. The household size in India has dropped in recent years, the 2011 census reporting 50% of households have four or fewer members, with an average 4.8 members per household including surviving grandparents.[331][332] These households produced a GDP of about $1.7 trillion.[333] Consumption patterns note: approximately 67% of households use firewood, crop residue or cow-dung cakes for cooking purposes; 53% do not have sanitation or drainage facilities on premises; 83% have water supply within their premises or 100 metres (330 ft) from their house in urban areas and 500 metres (1,600 ft) from the house in rural areas; 67% of the households have access to electricity; 63% of households have landline or mobile telephone service; 43% have a television; 26% have either a two- or four-wheel motor vehicle. Compared to 2001, these income and consumption trends represent moderate to significant improvements.[331] One report in 2010 claimed that high-income households outnumber low-income households.[334]
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.
India has made progress increasing the primary education attendance rate and expanding literacy to approximately three-fourths of the population.[389] India's literacy rate had grown from 52.2% in 1991 to 74.04% in 2011. The right to education at elementary level has been made one of the fundamental rights under the eighty-sixth Amendment of 2002, and legislation has been enacted to further the objective of providing free education to all children.[390] However, the literacy rate of 74% is lower than the worldwide average and the country suffers from a high drop-out rate.[391] Literacy rates and educational opportunities vary by region, gender, urban and rural areas, and among different social groups.[392][393]
The goal of creating multiple income streams should be to maximize your potential in each category available to you.  If you are just starting out, it really isn’t reasonable to expect you to generate tons of rental income.  However, if you start maximizing your income generating potential through your primary salary, you will find yourself having excess income that you can reinvest to generate additional income streams and earn more money.
The coolest part for me is a little part called Taxbot. It’s a cloud on the site that tracks all of my business expenses and you can download that to your phone, take a picture of your receipt and toss it. It also will track your mileage via GPS for you, when you need to. This has saved me so much time, and I feel so much more organized. You wouldn’t believe what I deal with during the Tax Season. Boxes and boxes of receipts, trying to piece it all together.

First of all, let's face the facts. Working 9 to 6, you won't have any time during the day. If you choose to have a second job during the evening hours, you'd get burnt out very easily. Chances are that you might under-perform in both the jobs. I recommend having a side business rather than a second job. Some investment of money and time would be required at first. I have come up with a few options that would require less work from you but would be a decent second source of income.

Attention Artists and readers: As always, you should exercise personal responsibility when applying to contests, call for submissions and related events, especially when money is requested for participation. Since many opportunities/venues are listed which have no previous track record you should determine their legitimacy per your own satisfaction before committing time and work. If you become aware of any changes in a published event please let us know. The listings and news provided on this website do not constitute an endorsement. Thank you.
In focusing on your wealth management goals, investment income is obviously critical but you might fund your goals from wider sources of income.  A typical long-term portfolio might produce about half its return as income and the other half as capital growth, though in times of duress the capital growth component wanes.  In this low-interest rate climate, some sources of income have become quite expensive and may prove disappointing against your spending needs.  But by tax efficiently and sustainably drawing income from wider sources, you might meet your goals while more prudently balancing risk against reward.