You should apply strictly for a tourist visa and purpose of your visit to India should be travel or tourism (yoga and ayurveda retreats in Rishikesh, visiting TAJ in Agra etc.). Invitation letter is not required for tourist visa. Please do not mention about joining a yoga course on your visa application form to avoid any complication. You cannot get study or yoga visa by registering for our course. Contact details of Indian embassy in your country can be found here.
In general, visa expiry date is counted from the day visa is issued. Please verify it with the concerned embassy. Try to apply for your visa 2 or 3 weeks before your travel date.
Delhi airport to Rishikesh by car is a 6 hours journey. We have a transportation package of US$ 150 which will cover your airport pick-up, transfer from Delhi to Rishikesh and after completion of the course transfer from Rishikesh to Delhi. One way transportation i.e. Delhi airport to Rishikesh can also be availed for US$ 85. In case, your flight arrives in the night and if you want to stay overnight in Delhi, airport pick-up cost will be US$ 25 and a reasonably good accommodation at a hotel in Delhi can be arranged for US$ 40 or 50. Our travel arrangements are executed under the supervision of professsionals and we are always ready with a back-up plan, in case of emergencies. Another good option is to travel by train (airport to New Delhi train station by car, then by train to Haridwar and from Haridwar to Rishikesh by car). Travel by bus is quite cheap but a bit inconvenient for first time visitors.
Cheap hotels can also be found in Delhi (Main Bazar, Paharganj area) for USD 10~20. From Delhi airport to Paharganj can be reached by airport metro express in less than 20 minutes and it costs less than US$ 2.
In case you haven't found the answer for your question please feel free to contact us, our customer support will be happy to help you.