How to get Senior Citizen Travel Insurance without Medical Tests?

My Old aged parents are travelling to meet me in CA, US. They are based out of Calcutta and cannot go for a medical test. Also, I need to have the policy sent to me directly so that they dont have to carry it and I can manage this myself. Is there any good website, where this could be bought instantly by paying online?

where i can access live 5 minutes, 30 minutes, intraday, short, medium and long term analysis charts for Nifty?

I want to learn trading in Nifty index futures and options. Currently i cannot affort to purchase my own analysis software and tick by tick data feed. However, i would like to know if there are websites which provide free access to live charts as well as 5 minutes, 10 minutes, 30 minutes, intraday, short term, medium term, and long term charts of nifty futures and also oscillators / indicators. Basically i am interested in learnijng.

when is the due date for filing returns of partners of a partnership concern which is liable for tax audit?

normally due dates for individuals is 31st july, but for partners of a partnership concern which is liable for tax audit,will the due date be 30th september,i;e due date of the firm, as the partners personal details cannot be finalised until the tax audit of the firm is completed. also if we file the individual partners return by 30th september, whether they will get the benifit of carrying forward the losses if any for the further years.