I have done southeast asia and nepal and around China by myself.You know that was really really nice trip.And i plan to Myanmar, India，still by myself,I think.Don't worry the security.But 52 days travelling Three countries,you know Very, very short time.India with Nepal is still very similar,If you don't have enough time to travelling,mybe you think about give up nepal.Because the india and china you need 2 month for trevelling each at last.
Guys, just to be clear, I dont want to do the whole India and the whole China!! That of course would require way way way more then 2 months!! I just want to Do Beijing-Xian-Lhasa-Katmandu-North India till I arrive in New Dheli!! You know, see the grat wall, the terracota warriors, take the train trip, see the everest base camp, the taj mahal and whatever is in between all of that... thank you so much for your reply!!