All foreign nationals entering India are required to possess a valid international travel document in the form of a national passport with a valid visa.
There are many visa application sites, however most of them are agents charging for what you can do yourself. The process is a little complicated, but if you take your time you can certainly do it yourself…
The official Government Visa Application for the E-Visa is here: https://www.indianvisaonline.gov.in/visa/tvoa.html
The E-visa is a Tourist visa valid for one entry within 6 months. PLEASE NOTE: The visa is valid for 6 months from date of issue, not date of travel, so do not apply too early. If you use this system be sure to print a copy of your completed application for the airline check in. No proof of visa, no travel.
Regular tourist visa. Valid for 12 months & multiple entry. Essential if you are visiting Bhutan, Nepal or some other nation state via Delhi. This is again valid from date of issue, and this visa is stuck in the passport.
The link for the online application for the Tourist Visa is here:
The Indian rupee (INR) is the official currency of India. The rupee is subdivided into 100 paise, though as of 2018, coins of denomination of 50 paise or half rupee is the lowest value in use. The issuance of the currency is controlled by the Reserve Bank of India.
There are 70-80 INR to one UK Pound, so the Paise has virtually no value. Most Indian money is in the form of notes and these can get very tatty.
The Indian Rupee is virtually a closed currency. It is very difficult to obtain rupees outside India. This means visitors arrive without any local currency – but don’t worry there are always exchange counters at arrival airports.
All major foreign currencies are welcomed in India (£ / $ / €).
Normal rules for dealing with money apply in India as for anywhere else you might travel. Do not leave your money unattended, and do not keep it all together in one place. It is often a good idea to keep your change in an accessible place, so most of your cash is hidden. Use of a money belt is a good idea.