I compiled this tab in G chord, you can change the scale as you want.
For the song, chords are basic G and Am.

   cha ti ma me ro-o  yo cho to bho to-o
E|----------------------------------------|
B|--3--3--3---3-----------3--3-- 3--------|
G|--------------4--2---4-------------4-2--|
D|----------------------------------------|
A|----------------------------------------|
E|----------------------------------------|


  kam mar  ma khur pe to    so dha ra  ma  la  i
E|-----------------------------------------------|
B|-----3---3--3----3-----------------------------|
G|-4------------------4p2---2--2----2---2--2---2-|
D|-----------------------------------------------|
A|-----------------------------------------------|
E|-----------------------------------------------|

   Maa na ko dha ni i  paune ma chai   na u
E|-------------------------------------------|
B|-----3--3---3-----------3--3---3-----------|
G|-2s4-----------4--2--4---------------4--2--|
D|-------------------------------------------|
A|-------------------------------------------|
E|-------------------------------------------|

   Ma jas to koi ke  to    so dha ra  ma  la  i
E|--------------------------------------------|
B|-----3---3--3---3---------------------------|
G|-4-----------------4p2---2------------------|
D|-----------------------------5--5---5--5--5-|
A|--------------------------------------------|
E|--------------------------------------------|

   a ha ma jas to koi ke to  so dha ra ma la i
E|----------------------------------------------|
B|-------------3--------------------------------|
G|------2--4------4---2(p)0--2------------------|
D|-2-5---------------------------5--5--5--5--5--|
A|----------------------------------------------|
E|----------------------------------------------|

  dha ka to pi sir ma me ro kam ma ra ma to pi
E|-----------------------------------------------|
B|-----2----2------2-----2------2-----2----------|
G|-4-----4------4-----4------4-----4-----4---4---|
D|-----------------------------------------------|
A|-----------------------------------------------|
E|-----------------------------------------------|
repeat as above for "Maanche herda keta keti kura garchay jethi

   ha mi jas to pau da a ru hid chan ma ri  me    ti
E|----------------------------------------------------|
B|----------------------------------------------------|
G|-2--4---2---------------2---------------------------|
D|-----------5---4--2--2-----5---4---2---4--0h2--2p0--|
A|----------------------------------------------------|
E|----------------------------------------------------|

   bho li ku ra gar chu ti mro ma i ti la  i  bhe ti
E|----------------------------------------------------|
B|-------------------------3--------------------------|
G|----------------------2-------4p2h4-----------------|
D|--0---0-2--5---5---5------------------5-5p2--5---5--|
A|----------------------------------------------------|
E|----------------------------------------------------|

   e hoi na bha ne ka  li   lo ta ma    lai so dha ra ma la i
E|------------------------------------------------------------|
B|------------------------------------------------------------|
G|--------------------2(h)4--4-2--2(p)0-2---2-----------------|
D|-5--5--5---5--5--5---------------------------5--5---5--5--5-|
A|------------------------------------------------------------|
E|------------------------------------------------------------|

Complete lyrics
Chati ma mero yo choto bhoto
kammar ma khurpeto sodha rama lai
man ko dhani paune ma chhainau
ma jasto koi keto sodha rama lai

aaha majasto koi keto sodha rama lai-2

talla ko goru jakhami bhayo
chautari jaulani sadha ramalai
aasai ko maya birasai bhayo
yo keto aaunale sodha rama lai

aaha yo keto aaunale sodha ramali-2

dhaka topi sirma mero kammar ma peti
manchhe herda keta keti kura garchheu jethi
hami jasto pauda arru hidchhan mari meti
bholi kura garchhu timro maiti lai bheti
e haina bhane kalilo tama lai sodha rama lai

aaha kalilo tama lai sodha rama lai 2

mukhiya ko aaganma kalama ko sacho
pandhra pugi sorha lage timi lai ke ko khacho
euta gori joti sakyo aarko chahi bajho
budeshkal ma garchhau budho taruni ko danjo
haina na bhane kalilo tama lai sodha ramalai

aaha kalilo tama lai sodha ramalai-2

boli ko bhano darsanai dhunga
aago ta dualaima sodha ramalai
hitai ko maya gharbare rahechheu
man paryo fulai ma sodha rama lai

aaha man paryo fulai ma sodha ramai-2

gothalo dai le bhaisi ma duhyo
khoi malai kurauni sodha ramali
euta lai haina duitalai haina
kilai puraune sodha ramalai
aha kati lai puraune sodha rama lai

aha kati lai puraune sodha rama lai-5