Arriving from Afghanistan, no yellow fever certificate is required: WHO does not list Afghanistan as a transmission risk. It can still be demanded if you have been in a risk country shortly before arriving.
Driving on a Afghanistan license
Afghanistan is party to the and India to the 1949 Geneva Convention. They share none, so no treaty obliges India to recognize an International Driving Permit issued in Afghanistan.
Whether a permit is required alongside your national license is set by national road law, which we have not checked for this pair.
Passport validity — India's e-Visa instructions say the passport should have at least six months' validity at the time of applying for the e-Visa and at least two blank pages for stamping. The UK Foreign Office tells British nationals their passport must have an expiry date at least 6 months after the date they arrive and at least 2 blank pages.
Designated eVisa entry points — The e-Visa portal says eVisa holders will be allowed to enter India only through the designated international airports (36 on its checkpoint list) and seaports listed on the e-Visa website.
e-Arrival Card — India's visa portal says foreign nationals and OCI/eOCI cardholders must complete and submit the e-Arrival Card, a free service of Indian Immigration, and that it can be submitted online within 72 hours before arrival at boi.gov.in or indianvisaonline.gov.in or via the official 'Indian Visa Su-Swagatam' app. It says this is for arrival information, not a visa.
Air Suvidha Self-Declaration Form — The Air Suvidha portal says all international passengers arriving in India are required to submit a health self-declaration online through the portal before arrival. It says the form is free of cost, can be filled up to 72 hours before arriving, is mandatory under the Epidemic Diseases Act, 1897 and the Disaster Management Act, 2005, and that the registration number is presented at the health desk on landing.
No official source states a rule on: travel insurance.