Though it can take a while to build up enough cash to put a 20% down payment on an investment property (the typical lender minimum), they can snowball fairly quickly. The key here is to correctly project income and expenses in order to calculate cash flow (the free cash you can put in your pocket after all associated property expenses have been paid). However you have to be sure to include the cost of a property manager in your calculations unless you want to manage the property yourself. Even with a property manager, you may be required to make large repair decisions every now and then – so while this is not a 100% passive activity, you are not directly trading your time for money like traditional employment.
“Start-up time” required: Poor – Experienced niche site builders will be well versed with outsourcing certain tasks and running through the whole process very efficiently, but when you first start out, it can take a long time to earn your first dollar from a niche site.  Doing research, designing the site, writing content, and doing proper SEO work can all be very time consuming, and the payoff isn’t always something you can rely on.
If you are an expert in some area, which you think can be taught to others by creating a course out of it, you can always sell it on or and make money on the fees recieved by the students. So if you are an expert on cooking, Yoga, SEO , Designing, MS Excel, Java, Python … whatever.. Create a nice rich course , record your videos and done ! .. You can tie up with these websites and then earn a lot money. Just understand those models and work on it.
If you are unfortunate enough to find yourself no longer able to physically work in your chosen position, developing a skill set that will allow for a complete career change is a must. The passive income route as a second career is a great backup allowing you to hire out what you can’t physically do. Early on in my career I found I was unable to physically tolerate exposure to tobacco smoke. At that time, smoking was allowed in all offices, restaurants, etc. I was blindsided; who ever thought? It virtually removed me from most positions I had schooling for. As luck would have it, I had purchased a duplex while working and saved a small sum. When I had to leave my career, I made a down payment on another duplex doing any maintenance I could myself. If a physical setback of another sort should happen, I can hire.

Overall income potential: Excellent – Although it’s very possible to make $0 with a niche site if it doesn’t receive traffic, you can also make a lot of money if you rank well for good keywords.  It’s not likely that you’ll make a living off one site, but they are generally easy to build.  If you can build one successfully, you can probably build several more.
The World Travel & Tourism Council calculated that tourism generated ₹15.24 lakh crore (US$210 billion) or 9.4% of the nation's GDP in 2017 and supported 41.622 million jobs, 8% of its total employment. The sector is predicted to grow at an annual rate of 6.9% to ₹32.05 lakh crore (US$450 billion) by 2028 (9.9% of GDP).[250] Over 10 million foreign tourists arrived in India in 2017 compared to 8.89 million in 2016, recording a growth of 15.6%.[251] India earned $21.07 billion in foreign exchange from tourism receipts in 2015.[252] International tourism to India has seen a steady growth from 2.37 million arrivals in 1997 to 8.03 million arrivals in 2015. The United States is the largest source of international tourists to India, while European Union nations and Japan are other major sources of international tourists.[253][254] Less than 10% of international tourists visit the Taj Mahal, with the majority visiting other cultural, thematic and holiday circuits.[255] Over 12 million Indian citizens take international trips each year for tourism, while domestic tourism within India adds about 740 million Indian travellers.[253]
I am making money from multiple sources for five years now, and I’m continually on the lookout for more and more. I own few businesses, but things were not easy on this path. For establishing a business or even thinking of the same one needs to be financially ready. For this you can refer to a section: How to be financially ready to start a business? But somehow you realize that you do not have enough money to start the big business you are thinking about, here are few ideas as to how you can start some low investment businesses: Special 21 small business ideas with low investments

The citizens of the Indus Valley Civilisation, a permanent settlement that flourished between 2800 BC and 1800 BC, practised agriculture, domesticated animals, used uniform weights and measures, made tools and weapons, and traded with other cities. Evidence of well-planned streets, a drainage system and water supply reveals their knowledge of urban planning, which included the first-known urban sanitation systems and the existence of a form of municipal government.[58]
In early modern Europe, there was significant demand for products from Mughal India, particularly cotton textiles, as well as goods such as spices, peppers, indigo, silks, and saltpeter (for use in munitions).[71] European fashion, for example, became increasingly dependent on Mughal Indian textiles and silks. From the late 17th century to the early 18th century, Mughal India accounted for 95% of British imports from Asia, and the Bengal Subah province alone accounted for 40% of Dutch imports from Asia.[81] In contrast, there was very little demand for European goods in Mughal India, which was largely self-sufficient.[71] Indian goods, especially those from Bengal, were also exported in large quantities to other Asian markets, such as Indonesia and Japan.[82] At the time, Mughal Bengal was the most important center of cotton textile production[83] and shipbuilding.[84]
There are many success stories you’ll run into of what it takes to generate multiple streams of income. However, one of the most important tips is to take on multiple clients. One client being your income source is bad news. They could voluntarily or involuntarily leave you high and dry. For instance, their business may begin to suffer and they no longer have the funds to pay you. Well, that is your income stream; gone without warning.

One of the easiest ways to increase your passive income is to shift your savings to a bank that pays a higher yield on your savings — for example, Discover Bank and EverBank pay almost 1% for your money. Although it doesn’t sound like much (especially in this low interest environment), little things do add up and eventually interest rates will rise.

Thirst for income is likely to continue with interest rates expected to stay low, keeping government bond yields low for longer and their valuations unattractive.  Looking past bonds, the prices of high-dividend shares are historically high, which limits the likelihood that their dividends will rise markedly from here.  Striving too high for an income target tends to push your portfolio further out on the risk spectrum.