You can apply for an Indian visa through the official Indian visa website or at an Indian consulate or embassy. The process typically involves filling out an online application form, submitting required documents (such as passport photos and proof of travel), and paying the visa fee.

The e-Visa is an electronic visa available to citizens of over 150 countries. It allows for easier application and faster processing times compared to traditional visas. Eligible travelers can apply online and receive their visa electronically before arriving in India.

Processing times can vary. Traditional visas can take several days to a few weeks depending on the applicant’s nationality and the specific visa type. E-Visas are usually processed within 72 hours, though it is advisable to apply at least 4-7 days before the intended travel date.

Required documents generally include a valid passport (with at least six months validity and two blank pages), a recent passport-sized photo, proof of travel arrangements (like flight tickets), proof of accommodation in India, and in some cases, additional documents such as a business letter or medical invitation, depending on the type of visa.

Certain visa types, such as e-Visas, are not extendable. However, under specific circumstances and for certain visa types, extensions may be possible. To extend a visa, you would need to apply through the Foreigners Regional Registration Office (FRRO) or the Foreigners Division of the Ministry of Home Affairs in India, providing a valid reason and necessary documentation.