I am not health professional nor infrastructure expert.I am into IT and don't know how I can add a value to this crisis except donating,which I have already done. Later in the year, I am planning to go back home and help in building houses in the one village (I'll research and choose).I've some saving and will utilize that.

My loved ones are fine as of now.I am thinking of the under privileged kids who have lost parents..

Thank you for you plan.

I have been advocating that we need training institute to train people in following areas.
Masonry
Wood working
Construction work
Electrical
Plumbing
Even :Hair cutting
so and so ?

Those people who are here to work on this field make more money that Middle East or other countries. Have you seen the data of Indians sending money to their homes from Nepal? It is a big chunk of money.
Who will start it? Or We solely depend on Indians?
On Sajha we hate Indians and we look them down. If they are not there our life do not run. It is the same as in America, if the Latinos are not here there will be havoc. This white or black ass will not substitute.
We are discriminated by type of work and we look down. Once I was at Sanchaya Kosh, a guy from Government office try to haggle the staff lecturing in English stating he is superior. One of them replies in English “ Who the hell you are, this is my office and I am the boss of my office and you are nobody to me other than just a customer”. May be it's better to work outside the country nobody says anything what so ever you do and make a living?

@magorkhe1 - Nepal has a LOT of training institutes that provide trainings in the areas you identified. In fact, the Employment Fund (funded by SDC, UkAid, World Bank) has trained more than 70,000 (seventy thousand) Nepalis since 2007. The problem has never been lack of training institute or lack of funding, the problem has always been the attitude of people. Even though training is free, it is hard to find serious trainees (they don't want to be seen getting trained for something as "demeaning" as masonry; they don't want to "waste" their time getting trained when they can be earning money working in bidesh). In essence, the attitude is bidesh ma je gareni huncha Nepal ma testo kaam garyo bhane ijjat jancha. This is why you see a lot of Indians working as construction workers in Nepal. 70K may not sound like a lot of people, but if serious interest was there additional funding would easily be available. Remember, what happened when the UN offered training to VMLRs (verified minors and late recruits).   

I've had a lot of time to think about infrastructure development in Nepal, especially in Kathmandu. I would like to share few thoughts.
- build traditional looking houses but structurally modern.
- limit houses to be only two or three stories tall depending on if its near historically significant places.
- make provision for actual sidewalk in front of houses, not haphazard mess we see in the streets.
- create standards for buildings, and enforce those standards.
- create proper zoning laws, giving emphasis to open spaces, parks, wide multi-lane roads.
- big sewage tunnels (like 7 feet diameter) on both sides of the rivers so human waste or sewage is not dumped directly in the rivers.
- make provision and environment (like public exchange) for Nepalese living outside to invest in hydropower, water, basic services.

Sometimes I feel like going to Nepal and run for mayor of Kathmandu to make positive changes.

In Panchayati regime : there was a limit on Height of house you can built? Who lifted it?