One lac investment is too small for a Business venture.You may go in for service industry where investments in Stocks are avoided and that saves the cash for other necessities.Service Industry relates to AMC for Computers, Printers, Faxes, AC,Refrigerators, Water filters, Delivery Agency for goods and Gifts at specific time/date, Electrical Licence and such other units.You should employ the services of a competent technician and canvass for business through your own merits.
First of all what is your qualification status?you can start your own business in this amount but you should have some experience about any business,you can start a small shoe or Garment shop if you having more then 1 lack rs.must thing is experience,if you do not have then earn it through the same line job.
Many ideas will come automatically in mind. Select according to convenient.