documentclass[10pt]{report}
usepackage[letterpaper,top=2.0cm,bottom=2.0cm,left=0.5cm,right=1cm]{geometry}
usepackage{booktabs}
usepackage{array}
usepackage{fancyhdr}
usepackage[iso]{datetime}
usepackage{lastpage}

usepackage{polyglossia}
setdefaultlanguage{english}
setotherlanguage{hindi}

usepackage{fontspec}
setmainfont{Times New Roman}
newfontfamilydevanagarifont[Scale=MatchUppercase]{sanskrit}
newfontfamilydevtransl[Mapping=DevRom]{Times New Roman}

pagestyle{fancy}
fancyhf{}
setlengthheadheight{0.5pt}
chead{textbf{huge{Inform}}}
lhead{textbf{Test1}}
rhead{textbf{normalsize{Sets}}}
rfoot{today hspace{0.5pt} currenttime}
cfoot{Page thepage of pageref{LastPage}}lfoot{Some}

renewcommand{headrulewidth}{1pt}

usepackage{supertabular}
begin{document}
fontsize{8}{10}selectfont
tablehead
{
toprule
& multicolumn{1}{p{24.5mm}}{textbf{foreignlanguage{hindi}{ग्रोस वोलयूम}}}
& multicolumn{1}{p{21mm}}{textbf{नेट वाल्यूम}}
& multicolumn{1}{p{16mm}}{textbf{लेवल}}
& multicolumn{1}{p{21mm}}{textbf{तापमान}}
& multicolumn{1}{p{16mm}}{centering{textbf{ऊलाज}}}
& multicolumn{1}{p{42mm}}{centering{textbf{लास्ट अपडेटड}}}\

& multicolumn{1}{p{24.5mm}}{centering{textbf{गैलन}}}
& multicolumn{1}{p{21mm}}{centering{textbf{गैलन}}}
& multicolumn{1}{p{16mm}}{textbf{सेन्टीमीटर}}
& multicolumn{1}{p{21mm}}{centering{textbf{सेन्टीग्रेड}}}
& multicolumn{1}{p{16mm}}{centering{textbf{गैलन}}} & \
toprule
}

begin{supertabular}{p{35mm}*{6}{r}}
\ multicolumn{7}{l}{textbf {3001}}\\
textbf{टेंक  2} & multicolumn{6}{l}{SET1}\
PROD 2& multicolumn{6}{l}{(4,011 अधिकतम)}\
multicolumn{1}{r}{textbf{प्रोडक्ट}} & 2,495.40 & 2,479.66 & 145.55 & 20.53 & 1,313.07 & 19/04/2012 15:00:23 \
multicolumn{1}{r}{textbf{Water}} & 1.79 & & 1.00 & & & \\
textbf{टेंक  3} & multicolumn{6}{l}{SET2}\
PROD 3& multicolumn{6}{l}{(4,011 अधिकतम)}\
multicolumn{1}{r}{textbf{प्रोडक्ट}} & 2,593.08 & 2,578.51 & 150.40 & 20.01 & 1,213.86 & 19/04/2012 15:00:23 \
multicolumn{1}{r}{textbf{SET3}} & 3.32 & & 1.51 & & & \\
toprule[2pt]\
end{supertabular}
end{document}

fc-list | grep Sanskrit

documentclass[10pt]{report}

usepackage{polyglossia}
setdefaultlanguage{english}
setotherlanguage{hindi}

usepackage{fontspec}
setmainfont{TimesNewRomanPSStd-Regular}
newfontfamilydevanagarifont[Scale=MatchUppercase]{Sanskrit2003}
newfontfamilydevtransl[Mapping=DevRom]{TimesNewRomanPSStd-Regular}

usepackage{booktabs,supertabular}

begin{document}
tablehead
{
toprule
& multicolumn{1}{p{24.5mm}}{devanagarifonttextbf{foreignlanguage{hindi}{ग्रोस वोलयूम}}}
& multicolumn{1}{p{21mm}}{devanagarifonttextbf{नेट वाल्यूम}}
& multicolumn{1}{p{16mm}}{devanagarifonttextbf{लेवल}}
& multicolumn{1}{p{21mm}}{devanagarifonttextbf{तापमान}}
& multicolumn{1}{p{16mm}}{centering{devanagarifonttextbf{ऊलाज}}}
& multicolumn{1}{p{42mm}}{centering{devanagarifonttextbf{लास्ट अपडेटड}}}\

& multicolumn{1}{p{24.5mm}}{centering{devanagarifonttextbf{गैलन}}}
& multicolumn{1}{p{21mm}}{centering{devanagarifonttextbf{गैलन}}}
& multicolumn{1}{p{16mm}}{devanagarifonttextbf{सेन्टीमीटर}}
& multicolumn{1}{p{21mm}}{devanagarifontcentering{textbf{सेन्टीग्रेड}}}
& multicolumn{1}{p{16mm}}{devanagarifontcentering{textbf{गैलन}}} & \
toprule
}

begin{supertabular}{p{35mm}*{6}{r}}
\ multicolumn{7}{l}{textbf {3001}}\\
devanagarifonttextbf{टेंक  2} & multicolumn{6}{l}{SET1}\
PROD 2& multicolumn{6}{l}{(4,011 devanagarifont अधिकतम)}\
multicolumn{1}{r}{devanagarifonttextbf{प्रोडक्ट}} & 2,495.40 & 2,479.66 & 145.55 & 20.53 & 1,313.07 & 19/04/2012 15:00:23 \
multicolumn{1}{r}{textbf{Water}} & 1.79 & & 1.00 & & & \\
devanagarifonttextbf{टेंक  3} & multicolumn{6}{l}{SET2}\
PROD 3& multicolumn{6}{l}{(4,011devanagarifont  अधिकतम)}\
multicolumn{1}{r}{devanagarifonttextbf{प्रोडक्ट}} & 2,593.08 & 2,578.51 & 150.40 & 20.01 & 1,213.86 & 19/04/2012 15:00:23 \
multicolumn{1}{r}{textbf{SET3}} & 3.32 & & 1.51 & & & \\
toprule[2pt]\
end{supertabular}
end{document}

documentclass[10pt]{report}

usepackage{polyglossia}
setdefaultlanguage{english}
setotherlanguage{hindi}

usepackage{fontspec}
setmainfont{Times New Roman}
newfontfamilydevanagarifont[Scale=MatchUppercase]{Sanskrit 2003}
newfontfamilydevtransl[Mapping=DevRom]{Times New Roman}

usepackage{booktabs,supertabular}

begin{document}
tablehead
{
toprule
& multicolumn{1}{p{24.5mm}}{devanagarifonttextbf{foreignlanguage{hindi}{ग्रोस वोलयूम}}}
& multicolumn{1}{p{21mm}}{devanagarifonttextbf{नेट वाल्यूम}}
& multicolumn{1}{p{16mm}}{devanagarifonttextbf{लेवल}}
& multicolumn{1}{p{21mm}}{devanagarifonttextbf{तापमान}}
& multicolumn{1}{p{16mm}}{centering{devanagarifonttextbf{ऊलाज}}}
& multicolumn{1}{p{42mm}}{centering{devanagarifonttextbf{लास्ट अपडेटड}}}\

& multicolumn{1}{p{24.5mm}}{centering{devanagarifonttextbf{गैलन}}}
& multicolumn{1}{p{21mm}}{centering{devanagarifonttextbf{गैलन}}}
& multicolumn{1}{p{16mm}}{devanagarifonttextbf{सेन्टीमीटर}}
& multicolumn{1}{p{21mm}}{devanagarifontcentering{textbf{सेन्टीग्रेड}}}
& multicolumn{1}{p{16mm}}{devanagarifontcentering{textbf{गैलन}}} & \
toprule
}

begin{supertabular}{p{35mm}*{6}{r}}
\ multicolumn{7}{l}{textbf {3001}}\\
devanagarifonttextbf{टेंक  2} & multicolumn{6}{l}{SET1}\
PROD 2& multicolumn{6}{l}{(4,011 devanagarifont अधिकतम)}\
multicolumn{1}{r}{devanagarifonttextbf{प्रोडक्ट}} & 2,495.40 & 2,479.66 & 145.55 & 20.53 & 1,313.07 & 19/04/2012 15:00:23 \
multicolumn{1}{r}{textbf{Water}} & 1.79 & & 1.00 & & & \\
devanagarifonttextbf{टेंक  3} & multicolumn{6}{l}{SET2}\
PROD 3& multicolumn{6}{l}{(4,011devanagarifont  अधिकतम)}\
multicolumn{1}{r}{devanagarifonttextbf{प्रोडक्ट}} & 2,593.08 & 2,578.51 & 150.40 & 20.01 & 1,213.86 & 19/04/2012 15:00:23 \
multicolumn{1}{r}{textbf{SET3}} & 3.32 & & 1.51 & & & \\
toprule[2pt]\
end{supertabular}
end{document}